Sleeper Cells: The Immigration Component of the Threat

In the wake of the terror attacks in Paris, France terror raids were carried out in Belgium and Greece to identify, locate and hunt down so-called “sleepers cells.” Journalists and politicians have finally raised the issue of the threats potentially posed by sleeper agents in the United States, going back to the future — the same concerns about sleeper cells in the United States were voiced in the wake of the terror attacks of September 11, 2001 including by the then-director of the FBI, Robert Mueller.

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