In a Thursday, March 3, 2011 photo, Ray Katz, portraying a spy, stands at the entrance to the Spies, Traitors and Saboteurs: Fear and Freedom in America exhibit during a press preview at the National ... more 
In a Thursday, March 3, 2011 photo, Ray Katz, portraying a spy, stands at the entrance to the Spies, Traitors and Saboteurs: Fear and Freedom in America exhibit during a press preview at the National Constitution Center in Philadelphia. The exhibit is scheduled to run from March 4, to May 30. less 
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Associated Press | Photo By Matt Rourke
Wed, Mar 9, 2011 4:27 AM EST