Begun in 1908 with fewer than 40 employees, the FBI has grown to become the world’s most powerful law enforcement agency. This program goes behind the scenes to examine the methods used by the FBI to prevent crimes, avert crises, and solve mysteries. The work of the bureau’s explosives unit on the Unabomber, Oklahoma City, and Atlanta bombings is analyzed, as is the performance of the cybercrime division on the Love Bug virus case. Undercover operations, informants, profiling, and hostage negotiations are also covered. A Discovery Channel Production. (51 minutes)