Was Saudi Arabia involved in 9/11?

7 Sep 2026 · 27 min · 12 chapters

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In short

A BBC investigation into whether Saudi Arabia was involved in the 9/11 attacks, focusing on Omar al-Bayoumi’s alleged role in helping two hijackers (Nawaf al-Hazmi and Khalid al-Midah) rent an apartment in San Diego in early 2000, and broader claims about Saudi government-linked networks.

Guest backgrounds

Jane McMullen is a BBC investigative reporter/documentary filmmaker who previously investigated the Parkwood Apartments incident and later interviewed/used FBI and UK police material. Tristan Redman is the episode host.

Key claims

Bayoumi allegedly facilitated the hijackers’ entry into the US by co-signing their lease; FBI/UK investigators suspected he was connected to Saudi intelligence or a Saudi government-linked reporting chain; phone records and payments allegedly tied him to Saudi Ministry of Defence/Islamic Affairs networks; the 9/11 Commission described him as unlikely and found no evidence of Saudi government funding of al-Qaeda as an institution.

Notable examples

Parkwood Apartments “party” video; Holly Ratchford’s office rental interactions; Bayoumi’s UK interrogation and non-extradition; alleged “ghost employee” payments; 93 calls to Saudi embassy/consulate officials during the hijackers’ arrival period; alleged contacts with Anwar al-Awlaki.

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

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Setting the Scene: A Party in San Diego

0:30 to 1:08

Describing a mysterious party in a San Diego apartment linked to 9/11.

“Listen to Choiceology at schwab.com slash podcast or wherever you listen.”

Setting the Scene: A Party in San Diego

1:10 to 3:48

Describing a mysterious party in a San Diego apartment linked to 9/11.

“Back in the early 2000s, before smartphones, if you wanted to record something, a family holiday, a concert, a graduation, a party, you had to use a camcorder.”

Introducing Holly Ratchford

3:48 to 4:48

Holly's background and role as the apartment manager is explored.

“Jane, you've been digging into this party and some of the events that happened around this time in the lead up to 9-11.”

The Arrival of Two Saudis

4:48 to 7:16

Holly encounters two Saudi men seeking an apartment in her complex.

“It sounds like it was a real family for you.”

Meeting Omar al-Bayoumi

7:16 to 8:35

Holly's interactions with Omar al-Bayoumi and his role unfolds.

“they don't have any of the things that she needs.”

Unraveling al-Bayoumi's Role

8:35 to 9:51

Exploring the implications of al-Bayoumi's support for the hijackers.

“So 25 years later, al-Bayoumi is at the center of a $1 trillion lawsuit that the 9-11 families are brought against the Kingdom of Saudi Arabia.”

The Unexpected Call

9:51 to 11:10

Holly receives shocking news about the true identity of the men she helped.

“They move somewhere else in San Diego and she doesn't really think anything more of it.”

Bayoumi's Questioning by UK Police

11:10 to 12:28

Details of Bayoumi's interrogation in the UK post-9/11.

“and when the FBI started to look into him, they wrote to the British police and within 10 days of 9-11, Bayoumi was arrested and taken down to London where he's questioned.”

Contradictions in Bayoumi's Story

12:28 to 14:00

Examining the inconsistencies in al-Bayoumi's claims during questioning.

“And so they question him, but he says that he helps people out in terms of getting them apartments all the time.”

Bayoumi's Interactions with Hijackers

14:00 to 19:17

Explore the questionable connections between Omar al-Bayoumi and the 9/11 hijackers.

“We're from, they said, we are from Saudi Arabia.”
Show all 12 chapters

Investigating Bayoumi's Extradition

21:39 to 28:05

Discuss the implications of Omar al-Bayoumi's interrogation and extradition decisions.

“Well, at this point in our story, it sounds like investigators both in the UK and with the FBI in the United States have quite a body of evidence.”

Saudi Government's Response to 9/11 Allegations

28:05 to 28:51

Explore the Saudi government's denial of involvement in 9/11 and their past funding to extremism.

“Pending what's happening in the Court of Appeal, he found that there was reasonable evidence that Bayoumi was working as an agent of the Saudi government on instructions from the Saudi government.”
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Transcript

Automatic transcript. May contain errors.

0:00This BBC podcast is supported by ads outside the UK.

0:30Listen to Choiceology at schwab.com slash podcast or wherever you listen.

1:00It's everything your business needs in one place, saving you time, headaches and serious money. Stop paying for missing pieces. Go to odoo.com. That's O-D-O-O dot com to learn more.

1:16Back in the early 2000s, before smartphones, if you wanted to record something, a family holiday, a concert, a graduation, a party, you had to use a camcorder. So, we're in San Diego.

1:34Jane McMullen:It's mid-February 2000. We're in the suburbs and there's a kind of squat apartment complex called Parkwood Apartments.

1:47Jane McMullen:And in one of the apartments, a one-bed flat, there is a party happening. This is Jane McMullen. She's a reporter with the BBC and she's describing a home video that would later become evidence in an FBI investigation. It's not like a normal party. It's a party where the door is locked and inside there's no furniture. Everyone's sat on the floor around the edge of the room, apart from a few individuals who are moving around serving food. They've got a whole roast lamb, which they're serving. Jane's been investigating what happened in this San Diego apartment block in the months that led up to the 9-11 attacks, and in particular, some of the people that lived there.

2:43Jane McMullen:The guests at this party are local people from the community, and then there are three individuals. Two of them don't speak English, they're very smartly dressed, and they are helping to serve, they're kind of playing a hosting role. together with one guy who's wearing a white cricket jumper and is very kind of like, is laughing and joking with everyone, is very much the centre of the tension. He's kind of like the compere of the gathering. What Jane's found out about these three men, particularly the one in the cricket jumper, gets to the heart of one of the most sensitive questions about 9-11.

3:19And the accusations, always denied, that have dogged one of the United States' closest allies for 25 years.

3:27Jane McMullen:The links between the three of them may tell us something that is not widely known about the 9-11 attacks and about the allegations that Saudi Arabia may have been involved in the attacks.

3:44From the BBC, I'm Tristan Redman. Today on The Global Story, an exclusive BBC investigation. Was Saudi Arabia involved?

4:02Jane, you've been digging into this party and some of the events that happened around this time in the lead up to 9-11. And one of the central characters that you've met in your investigation is a woman called Holly. Who is she and why is she important to your investigation? What's her story?

4:20Jane McMullen:so holly ratchford was the manager of the parkwood apartment complex in the suburbs of san diego she was in her 20s at the time she has never spoken to the media she'd had a slightly kind of untethered life she'd moved around a lot in her teens and her early 20s and had um got married and got and had kids and got divorced all quite young and she really landed on her feet when she got this job managing this apartment complex and she was so good that like there was always people moving in they never had any vacancies for long you know she always had really good turnover in these apartments but she also just had like a wild sense of fun i was really good at my paperwork but that wasn't what made the job worth doing for me for me it was the interactions with the people.

5:10It sounds like it was a real family for you.

5:12Jane McMullen:Oh yeah, oh yeah. You know, she would decorate her office and have pool parties all the time and, you know, have, trying to get everybody together and everybody to really make it feel like it was a family living there in this apartment complex. And we would have a blast. And I always told my staff, when someone comes in here, this is their home. You make them feel like this is their home and they'll stay. She's a very ordinary person, a lovely ordinary person who ends up playing quite a central role as a witness to a very important moment in this story because at the beginning of February 2000, two men come into her office.

5:56I thought they were kind of nice, young looking men. I want to believe everybody's a good guy.

6:05I don't think I ever want to be as blindsided as I was by them not being who they said they were.

6:13Jane McMullen:These two guys, they're from the Middle East. They're Saudis. They don't speak any English. But then there are a lot of people in Parkwood that don't speak English. So that's not that unusual in itself. They want to get an apartment. So they've come in with a guy. There's a guy who's actually a resident already at Parkwood, who is helping them to get this apartment, translating for them, and also just organising all the arrangements for them. Essentially, he's their chaperone. He's managing everything for them because they're kind of a bit out of their depth. They didn't speak to me professionally on a one-to-one basis.

6:45They only spoke to me high, you know, the pleasantries. The problem is they've got no income. They didn't meet the income criteria at all. They didn't have bank accounts. They had none of that. What are they actually doing in San Diego?

6:59Jane McMullen:They've literally just arrived in San Diego at this point. They arrived the day before. It turns out they've actually never been to America before. They don't know about American culture. So their story is they're there to learn English. And so Holly has this decision. Is she going to rent an apartment to them? But she can't because they don't have any of the things that she needs. So it's a quick no from Holly. And so the friend takes them to the bank, helps them get a bank account. And then he brings them back to her office on the third day and he agrees to co-sign their lease. And who is this third man, this benefactor?

7:36Jane McMullen:So the third man is the guy at the centre of the investigation that I've been doing. He's a guy called Omar al-Bayoumi. He's a Saudi national. He's in his early 40s and he says he's a student. Now, when he arrived in San Diego in 1994, he was studying. He studied English and and then he's enrolled in business courses. So he's a student, and he's, in Holly's view, he's a family guy. He's a guy who hangs out by the pool with his kids and takes them on outings, and we've actually got some of his home movies that he's shot. Nice one. Smile, girl, smile. Where, you know, we see him at SeaWorld with his kids on Independence Day looking at the dolphins.

8:23Jane McMullen:batting around a ball with his family by the parkwood pool he's traveling and visiting places in america he's learning english making a life for himself right and that's what holly thinks and holly makes friends with the guy she thinks that he's just one of the you know just like everybody else at parkwoods she describes him as bubbly and social he's very much a kind of like fixture of the parkwood social scene well so far so wholesome what have you found out about what al-Bayoumi was actually in San Diego to do. So 25 years later, al-Bayoumi is at the center of a $1 trillion lawsuit that the 9-11 families are brought against the Kingdom of Saudi Arabia.

9:03Jane McMullen:And the allegation against him is that he facilitated the 9-11 hijackings because he provided material support to the first two hijackers to arrive in the US in February 2000, when he brought the hijackers in to Holly's rental office. It's clear that without his support, they wouldn't have been able to find a place to live. They couldn't have done that by themselves. Did Holly think there was anything unusual about his support of these two individuals at the time or just took it as read? No, he told her that they were just two friends from the mosque. They were staying with him and he just needed to find them somewhere to live.

9:41Well, this is all in the kind of 18 months leading up to the 9-11 attacks in 2001. So what happens next?

9:50Jane McMullen:Well, what happens next for Holly is they move out after about four months. They move somewhere else in San Diego and she doesn't really think anything more of it. And then, you know, fast forward 16 months, she gets a phone call out of the blue from somebody who she thinks is in property management asking for reference for these two men. I was like, oh, yeah, they're really nice. Everything is fine. Their file's fine. Because I knew it off the top of my head. And then she realizes that the woman isn't in property management. She's a reporter. And the woman says, Did you know that they were two of the terrorists that flew their planes in the Pentagon?

10:27And I went, what? I had no idea. No idea. I mean, I almost just cried.

10:36Jane McMullen:It wasn't very long after that that the FBI came knocking at her door. And they wanted to go through the rental agreement. They wanted to find out everything they could about the two hijackers, Nawaf al-Hazmin, Khalid al-Midah. I had all my documents right there. I was able to pull those files and we were able to sit there and go through them and look exactly what happened. And what they found in the files was not only all this information about the two hijackers, but this third man. Where is Bayoumi at this point? Is he still living in the apartment block? Bayoumi at this point has moved to the UK and when the FBI started to look into him, they wrote to the British police and within 10 days of 9-11, Bayoumi was arrested and taken down to London where he's questioned.

11:26This interview is being shared with you.

11:28Jane McMullen:It's actually a really extraordinary interview. We're investigating the most serious terrorist incident in the world. He explains that he's a student, he doesn't know anything about 9-11, and he doesn't know any of the perpetrators of 9-11. I don't have any idea about this situation. The two detectives, the Met detectives that are questioning him, know that's not true. What evidence do they present him with to the contrary? Well, that's a really good question, because they are never given very much evidence... By the Americans? ...by the FBI. And so one thing that you would expect them to be given is the rental agreement, which tells you, for instance, how much rent the hijackers were paying, how much Bayoumi was on the hook for if the hijackers didn't pay, and the terms of that guarantor agreement that Bayoumi signs, which are actually really strict.

12:23Jane McMullen:But they never get any of that information. So the investigators in the UK are flying partly blind. Right. And so they question him, but he says that he helps people out in terms of getting them apartments all the time.

12:39Jane McMullen:And the detectives say, give us the names of some people that you've got apartments for. And you can't give any names.

12:57It's financially binding.

13:01Jane McMullen:It goes round and round and round. And eventually, he gives these two names. I remember now the guy, they came together, two. Two of them, right? Yeah. The first one, Nawaf, I think. And the second? The second one? I think Khaled. Nawaf and Khaled, the two names of the two hijackers, right? But he's gone from saying that he does this for all sorts of people to eventually saying he's only ever done it for these two people. But Bayoumi's story that comes out through this interview is that he just met them a couple of days before. He'd gone to Los Angeles, which is 120 miles from San Diego. I went to Los Angeles first to renew my passport.

13:48I was in the consulate over there.

13:51Jane McMullen:After he'd gone to the consulate, he'd gone and had a meal in a restaurant just around the corner from the mosque. And there he'd heard these two guys talking in Gulf Arabic. And he gets chatting to them. We're from, they said, we are from Saudi Arabia. He says that these two guys tell him they don't like L.A. and they want to learn English. And he says... If you need help or something like that, just call me. And he gives them his phone number. And the next day, they show up in his mosque in San Diego. And that's when he gets them the apartment. How does that story that he is giving to the British police map onto the story that Holly has from San Diego?

14:32Jane McMullen:What Holly says is that in the weeks before the hijackers arrived, that Bayoumi had come in asking for an apartment for two people. That would suggest that he knew that there were people that were coming. Now, another thing that Bayoumi says in the interview with the police is that it was a very brief encounter with the hijackers, that after he got them their apartment, he left town, he didn't really like them, he didn't want to socialise with them, he basically didn't have very much contact with them after that one act of support. What Holly told me was that she saw them together. They were friends.

15:13Jane McMullen:They were at his house. They did stuff together. and so it really cast doubt on this narrative that Bayoumi portrays that you know that there wasn't a sort of ongoing relationship with them. So we have these two individuals we have them it would appear according to Holly with strong links to this guy Bayoumi. What have you found out in your investigations about who Bayoumi actually was? Right so remember Bayoumi claims he's a student, the FBI investigated Bayoumi extensively after 9-11, and they discovered that he doesn't go to class. And instead, he's hanging out a lot in the Muslim community, organizing events.

15:52Jane McMullen:He runs a mosque, and he is often seen with a camcorder pressed to his eye, filming events and asking questions of people. And it leads many people in the Muslim community to tell the FBI that they think he's some kind of Saudi intelligence officer. Doing what? Essentially reporting on the community, on dissidents, to the Saudi government. So this is something that a lot of Saudi communities have. They'll have somebody that is essentially monitoring, checking for dissident behavior. They're very worried about these communities around the world. What we have also discovered is that he has a steady stream of officials from the Ministry of Islamic Affairs visiting him in San Diego, and they come over at key moments, and he films them as well.

16:42Jane McMullen:And he also has contacts with a number of known extremists, including a guy called Anwar al-Awlaki, who goes on to lead al-Qaeda in the Arabian Peninsula. And Awlaki at this point already had extremist connections, connections to al-Qaeda associates, and Bayoumi is very friendly with him, and we can see that in video evidence that he's incredibly friendly with Awlaki. And so there's a sort of sense that Bayoumi, he's someone who's very well plugged into the Saudi government network. And he's someone who's got extremist contacts as well. The bombshell allegation there is that he may have been linked to the Saudi government.

17:22How strong are those connections? What have you been able to establish? Is he actually receiving any kind of official government salary or anything like that?

17:31Jane McMullen:He was. He was seconded from a part of the Ministry of Defence to study English in San Diego. And while he was studying English, he was being paid by two companies that were linked to the Ministry of Defence. He was being paid an extraordinary amount of money for a student,$90 ,000 a year. And the FBI, actually, after 9-11, they spoke to somebody that worked at one of these companies. And this guy described him as a ghost employee because he never showed up. The FBI also raided his mosque and found an address book, which they described to us in the program as a rolodex of contacts with Saudi government officials.

Read the full transcript

18:09Jane McMullen:So dozens of names of officials from the Saudi embassy, from the Saudi consulate. And they got his phone records. And the phone records showed that in the three months when the hijackers arrived, there were 93 phone calls to officials from the embassy, from the consulate and from another government office in the US. So there's a lot of connectivity between Bayoumi and other officials from the Saudi government. I should say at this point, we did try to reach Omar al-Bayoumi, but we didn't get a response from him. Bayoumi and the Saudi government both deny that he was a government agent or a spy.

18:45Jane McMullen:He's always denied knowing that Khalid al-Midar and Nawaf al-Hazmi were hijackers. He's denied knowing them well and he's denied doing anything other than just an act of a good Muslim in helping them. And he claims that these phone calls were about routine matters like his studies or the mosque that he was running. The Saudi government has said that the phone calls show nothing about the contents of the call. So they know when the calls were, but they show nothing about what was actually being discussed in the calls. But the actual pattern of the calls looks like reporting. It looks like information is being passed between people.

19:25Jane McMullen:And that led the FBI in San Diego to suspect that this was essentially a reporting chain. Because the calls occur at key moments in the hijacker's timeline. For instance, when they go to Parkwood or when they go and get their bank account, there's a flurry of calls. Then when the party happens, there's another call from Bayoumi to a senior person in the embassy. So the timing of the calls has led the FBI to conclude that these calls look like kind of a reporting pattern, which ties Bayoumi in to a network of Saudi government officials. And that's then led the 9-11 families today, that fast forward 25 years, to make this allegation that it wasn't just Bayoumi, it was the Saudi government that was essentially facilitating the 9-11 plot.

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20:54It's smoother, deeper, and almost buttery. Once people try it, they start putting it on everything. Egg sandwiches, fries, burgers. Some fans even swear by dipping pizza crust in it. And once you notice it, you start seeing it everywhere. Chefs use it. Restaurants use it. People who really care about flavor use it. Never tried it? Grab the bottle with the red cap next time you're at the store. Put it on just about anything. Then you'll understand.

21:39Well, at this point in our story, it sounds like investigators both in the UK and with the FBI in the United States have quite a body of evidence. Was he extradited from the UK to the United States? You know, you've described him being interrogated in London. What happens next?

21:55Jane McMullen:So he's interrogated for seven days. By the end of it, the detectives that were doing the interview were highly suspicious. I mean, they accuse him in the interview of lying and they basically say, we think you're involved. And at the end of it, there's a meeting between the detectives and their bosses from the Met Police and a number of senior officials from the Department of Justice and the FBI. And the decision from the Department of Justice is that they're not going to extradite him. They're going to let him basically be released. I mean, that's remarkable. Given the situation you're describing with all this evidence, I mean, I remember those moments after the 9-11 attacks and the kind of febrile atmosphere and fear that there might be another attack.

22:39It's remarkable that they would decide not to extradite him under those circumstances, isn't it?

22:44Jane McMullen:It's very curious why so little effort was made to extradite Bayoumi. How have the FBI and the US government responded to your investigation? The FBI declined to comment to us. The Department of Justice said it was unable to comment on matters from 25 years ago involving staff that no longer work there. Well, not long after this, the investigation into 9-11 and the lead up to it and who might have been behind the attacks takes on new dimensions. In November 2002, there is the 9-11 commission, which is a bipartisan investigation. How seriously were the allegations that Saudi Arabia might have been involved at an official level and that Bayoumi might have been part of this?

23:29How seriously were those allegations taken by the commission?

23:32Jane McMullen:So it was already known that 15 of the 19 hijackers was Saudi, bin Laden was Saudi, and it was already known that there was this guy Omar al-Bayoumi who had helped the hijackers. And in fact, the executive director of the commission flew out to Riyadh and interviewed Bayoumi. He's now in Saudi Arabia? He's in Saudi Arabia. They didn't get Bayoumi to make any major admissions, and then a few months later when the report is released and it becomes a massive bestseller, Bayoumi is effectively exonerated. is described in the report as obliging and gregarious. And it says that there's no evidence of any extremism and that those investigators who have met him and spent time with him and researched his background find that he's an unlikely candidate for clandestine involvement with Islamist extremists.

24:20Well, let's zoom out here for a second and do some kind of devil's advocacy. Safer arguments say that there was some official Saudi involvement in the 9-11 attacks, which obviously the Saudi government denies. To what end? The United States and Saudi Arabia are staunch long-term allies. Why on earth would Saudi Arabia take part in such an attack?

24:42Jane McMullen:The Saudi regime at this time in the 90s was run by a group of princes. And they had different ideas about things. So there were some princes who were progressive and pro-American and vehemently opposed to bin Laden and al-Qaeda. But there are other people within Saudi Arabia who are much more sympathetic to a kind of hardline form of Sunni Islam called Wahhabism, which was the dominant form of religion in Saudi Arabia. and what happened in the 90s was that as a result of American troops coming into Saudi Arabia during the Gulf War, there was a backlash by clerics in the kingdom who believed that the princes that ran the country essentially were jeopardizing the Islamic nature of the kingdom.

25:29Jane McMullen:It was a period of peril for the ruling family in Saudi Arabia. They had to do a deal with the clerics in order to kind of shore up their own power. And that deal gave the clerics a lot of power themselves. They created this Ministry of Islamic Affairs. They gave it a lot of money. And the Ministry of Islamic Affairs essentially was given free reign to go around the world and fund charities and mosques as long as they didn't cause too much trouble at home. And so a lot of extremists were sent out to run these mosques around the world that were being built. And what we now know is that that really ties in with this network of Ministry of Islamic Affairs officials that we see around Omar al-Bayoumi who share this radical form of Islam.

26:19Does the 9-11 Commission effectively clear Saudi Arabia of any involvement in the 9-11 attacks?

26:26Jane McMullen:What it says is that there is no evidence that the Saudi government as an institution or senior Saudi officials individually funded al-Qaeda. And that's a statement that becomes incredibly important. Because it leaves open the possibility that individuals within the Saudi government might have been acting as freelancers essentially. It does. It leaves open some questions about whether there are other Saudi government officials that were involved. Well, given then those open questions, I imagine some of the bereaved families might be looking for answers. What are they doing to try and find them?

27:00Jane McMullen:So the 9-11 families are suing the Kingdom of Saudi Arabia. There are something like 10 ,000 members of the families of the 9-11 victims and the survivors of 9-11 who are in a lawsuit that's currently going through the courts in Manhattan, a$1 trillion lawsuit. We interviewed a fantastic woman called Terry Strada, whose husband died in the World Trade Center, and she spent six years of her life lobbying members of Congress to try and pass this law which would allow them to get around something called sovereign immunity. That law was passed, and that meant they could sue the Kingdom of Saudi Arabia, and that's where we are today, is the Kingdom of Saudi Arabia is still trying to fight against the fact that this lawsuit is happening.

27:45Jane McMullen:They believe that they still have sovereign immunity, and that they shouldn't be being sued in the US court. But right now, the cases with the Court of Appeal, they're just about to have oral arguments to establish whether there is this jurisdiction, whether the case can go ahead. But very significantly, a judge in this civil suit, a district judge, has now ruled that the case can go to trial. Pending what's happening in the Court of Appeal, he found that there was reasonable evidence that Bayoumi was working as an agent of the Saudi government on instructions from the Saudi government. So what has the Saudi government said about these allegations?

28:25Jane McMullen:So we did write to the Saudi government and to the Ministry of Islamic Affairs. They didn't respond to us, but they have previously said that any allegation that they were complicit in 9-11 is categorically false. They have accepted that before 9-11, some money went to al-Qaeda and associated groups, but they've also said that they have taken steps to tackle extremism since 9-11.

28:51Jane, thank you so much.

28:52Jane McMullen:Thank you.

28:57That was Jane McMullen, investigative documentary filmmaker for the BBC. And if you want to hear Jane's full investigation, search for Intrigue from Radio 4 wherever you get your pods. And please send us all of your thoughts and ideas on the global story at bbc.com. As you know, we love to hear from you. And please take a second to rate us wherever you're listening. It helps other people find us. And if you want to catch up on the very latest news headlines from around the world, then look out for our sister show, the global news podcast, wherever you listen. And that's it from us. The episode was produced by Vari McKenzie and Zandra Ellen.

29:37It was edited by James Shield and mixed by Travis Evans. Our digital producer was Tom Bage. Our studio manager was Mike Regard. Our senior news editor is China Collins. And I'm Tristan Redman. We'll be back again tomorrow. See you then. Cheerio.

From the publisher

Twenty-five years on from the deadliest terror attack in history, thousands of grieving families are still fighting for answers. In early 2000, two young Saudis arrived in San Diego. They had never been to America, spoke almost no English, and had no idea how to open a bank account or rent a flat. Within weeks they had done all of it. Twenty months later they hijacked a plane and crashed it into the Pentagon. The BBC’s Jane McMullen has been investigating a man who helped two of the hijackers – and has revealed a story that the US and Saudi governments have fought to keep secret. Producers: Mhairi Mackenzie and Xandra Ellin

Digital producer: Tom Bage

Mix: Travis Evans

Editor for The Global Story: James Shield

Editor for Intrigue: A 9/11 Story: Matt Willis

Senior news editor: China Collins

Photo: New York City skyline with Brooklyn Bridge in the foreground and the twin towers of the World Trade Center in the background.

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