Former FBI Agent: Investigation 'Takes Time'

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Former FBI Agent: Investigation 'Takes Time'

Former FBI Agent: Investigation 'Takes Time'
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Former FBI Agent: Investigation 'Takes Time'

by Associated Press Videos 1:32 mins

Investigators searched for clues on Wednesday around the site of the Boston Marathon explosions. A former Special Agent with the FBI said 'bombing investigations require you to sift through lots of debris and that takes time.' (April 17)

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