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agitation

The outter perimeter near Massachusetts Avenue and Newbury Street is secured by police after two explosive devices detonated at the finish line of the 117th Boston Marathon on April 15, 2013 in Boston, Massachusetts. Two people are confirmed dead and at least 23 injured after two explosions went off near the finish line to the marathon. (Photo by Alex Trautwig/Getty Images)

Expert: Boston Bombers Had Terrorist Body Language

As investigators begin to explore the deeper secrets behind the Boston terrorists, even darker questions arise: Are they alone? Is this going to happen again?

NewsRadio 1020 KDKA–04/24/2013

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