Questions surrounding 9/11 hijackers and former Sarasota family still remain unanswered

APTN interview with Mohamed Atta's father

9/11 Anniversary: Behind the 19 Hijackers

'20th Hijacker's' stunning 9/11 claims

Weston man came face to face with 9/11 lead hijacker

Workers claim to have seen 9/11 hijackers at Logan before attack

Orlando International Airport inspector stopped 9/11 hijacker

Pentagon-Released Video of Osama bin Laden Talking About Terrorist Attacks (A)

CBS News exclusive: Newly released video shows 9/11 hijacker with Saudi intelligence operative

Beyond Osama: Meet the other Al-Qaeda men behind 9/11 and where they are now

'I'm taking over this plane': Passenger allegedly tries to stab flight attendant, open plane door

Former Owner of Flight School That Trained 9/11 Pilots Recounts Lost Fortune

9/11 attacks: air traffic control recordings

Ex-FBI agent who worked on secret 9/11 case says hijackers had a U.S-based support network

Al-Qaeda and 9/11 Terrorist Leader Dead

Woman sat next to 9/11 terrorists on plane

Passenger opens plane door midair on a flight | GMA

Ticket Agent Recalls Encounter With 9/11 Terrorists

Reaction to release of video showing 9-11 hijackers

Osama Bin Laden's Computer Had New 9/11 Attack Plan