On April 19, 1993, David Koresh and 73 followers - including 26 children - died when their 51-day standoff with the government launched a tear-gassing operation.  For years, the FBI has claimed that flashes on infrared film of the attack were caused by debris reflecting sunlight, insisting they could not have been caused by gunfire.

A reenactment of the siege seven years later forced government lawyers to admit that infrared technology can indeed pick up muzzle flashes.  Survivors of those who died in the Waco inferno say the evidence proves that the government set fire to the compound, then cut off the only route of escape with gunfire.