What FBI Found After 9/11 Still Remains A Mystery

On the morning of September 11, 2001, the Federal Bureau of Investigation launched the largest and most expensive criminal investigation in American history. Code-named PENTTBOM, over 7,000 special agents tracked more than half a million leads across the globe. Within 72 hours, the government had names, faces, and flight manifests for all nineteen hijackers. Yet a quarter-century later, amidst millions of pages of declassified files, heavily redacted memos, and ongoing federal lawsuits, some of the most critical questions surrounding the attacks remain shrouded in official secrecy. From unsearched flight-school laptops and ignored intelligence warnings to the secret decade-long inquiry known as Operation Encore and the classified 28 Pages, this comprehensive documentary reveals what the FBI found after 9/11 and the unsettling mysteries that remain unresolved to this very day.