PBS NewsHour

Boston Investigators Up Against Weather, Volume of Evidence

  • Posted: 4/18/2013
    • Length: 04:22
    • Plays: ???
Synopsis >

In Boston, evidence seemed to suggest that the explosive devices were made from pressure cookers filled with shrapnel. Jeffrey Brown talks to WBUR reporter David Boeri about what else police and federal agents have discovered, as well as what challenges they face in trying to piece together

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