Witnesses describe hearing Boston Marathon explosions, the chaos of bloody bombing scene
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AP PHOTOS: 2 bombs explode at Boston Marathon finish line
If you haven't heard from a runner at the Boston Marathon, there are several ways to find out whether he's safe.
Va Supreme Court Justice Bill Mims crossed Boston Marathon finish line minutes before blasts
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Obama: Those responsible for Boston Marathon explosions will feel 'the full weight of justice'
Cities worldwide step up security after twin blasts at Boston Marathon
FAA tells pilots there's a no-fly zone over site of Boston marathon explosions
Eighty-two runners in the 2013 Boston Marathon listed their city of residence as Arlington, Va. Following today's horrific bombing at the race's finish line, we're now starting to hear from some of those Arlington residents who ran the race and escaped the event unscathed.
Police in Baltimore and state increase security in wake of Boston blasts
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