As Seen on Discovery Channel! Hard science. Real justice. Whether it handles bullets or bombs, fingerprints or fibers, the FBI's crime lab - the largest facility in the world - takes on tough cases, grappling with fraud, drug trafficking, kidnapping and murder, extortion and terrorism. From the Unabomber to the bombing of the World Trade Center, from the abduction of Polly Klaas to the true story of John Gotti, the FBI Files brings you into the world of the FBI as it unravels some of the greatest criminal cases it has ever solved.