U.S. Capitol Police officers keep watch after a 29-year-old Moroccan man was arrested Friday in an FBI sting operation near the Capitol while planning to detonate what police said he thought were live explosives, in Washington, Friday, Feb. 17, 2012. (AP Photo/J. Scott Applewhite)

Photo by: J. Scott Applewhite

U.S. Capitol Police officers keep watch after a 29-year-old Moroccan man was arrested Friday in an FBI sting operation near the Capitol while planning to detonate what police said he thought were live explosives, in Washington, Friday, Feb. 17, 2012. (AP Photo/J. Scott Applewhite)