For many Americans, the most difficult questions about 9/11 were not about politics, military strategy or homeland security. They were questions about God, about evil and about the potential for darkness within religion itself. What was it we saw on Sept. 11? Was it the true face of evil? Was it the face of religion? And where, if one is a believer, was God on that tragic morning?

When the Twin Towers fell on September 11, 2001, among the thousands killed was the one man who may have known more about Osama bin Laden and Al Qaeda than any other person in America: John O'Neill.

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.

Through interviews with consumers, legislators, scientists, top industry leaders and analysts, "The Other Drug War" examines the efforts of states like Maine and Oregon to control escalating drug costs in the face of strong opposition from the pharmaceutical industry. The program also explores the tension between the high cost of scientific innovation and society's need to keep drugs and health care affordable.