In December 2001, as American forces blasted mountain hideouts in the Tora Bora region of Afghanistan, hundreds of Al Qaeda soldiers fled seemingly disappearing into thin air. In this 2002 documentary, FRONTLINE investigates what happened to the fighters who survived.
When the Twin Towers fell, the FBI's top expert on Al Qaeda went with them.
One year after 9/11 how did America grapple with its biggest and most difficult questions?
How the Israeli-Palestinian peace process begun at Oslo was derailed.
