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The Feds May Have Found Female DNA on the #Boston Bombs:
Really interesting piece about pressure cooker bombs:
Homeland Security Warned In 2010 Of Pressure Cooker Bombs Like Those In Boston Marathon Explosions: via @FastCompany
What did Bostonians do when the bombs went off? Stories and photos from the marathon route:
How Do Bomb-Sniffing Dogs Sniff Bombs? EXPLAINED:
Doctors are "pulling ball bearings out of people" suggesting that the bombs were designed to propel shrapnel:
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