Visibility Zero

Visibility Zero refers to episode 41 of the Season 8 of the television series Forensic Files which was broadcast for the first time on November 15, 2004.

Plot summary
In 1993, the Amtrak Railroad experienced the deadliest train crash in United States history when the Sunset Limited derailed while crossing Alabama's Big Bayou Canot bridge. Forty-seven passengers and crew were killed; scores more were injured. The clues to the cause of the crash lay etched in twisted steel and buried in the mud of the Big Bayou Canot.