On July 17, 1996, at 8:31 PM, TWA Flight 800 exploded midair and fell into the Atlantic. Federal Investigators meticulously re constructed the aircraft, looking for any evidence of terrorism and found none. They concluded that a malfunction in the center fuel tank caused the explosion. But this official conclusion never satisfied many independent investigators and conspiracy theorists. “Conspiracy?” weighs existing evidence against various theories to let you decide.