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In 2004, the FBI and NCIS needed to identify and catch an engineer who had been stealing U.S. Navy secrets for the Chinese government.
Homeland Security Investigations conducts an elaborate undercover sting operation to stop an illegal arms dealer.
The FBI and Defense Intelligence Agency join forces to catch Ana Montes, a senior DIA analyst who was passing sensitive intelligence to Cuba.
A DIA interrogator and U.S Special Forces work together to find missing Iraqi dictator Saddam Hussein.