The CIA came up with an ingenious plan they dubbed Spychiatrist. In theory, assassins and covert operatives would be more at ease in a therapy setting. So the agency hired a psychiatrist to bring agents in from the cold: Dr. Harvey Chatham. But a flaw in the strategy soon became apparent within the dark corners of the CIA. After weeks of sessions, Harvey was walking around with classified information he had obtained from dozens of patients. In fact,...