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The Boston Globe


FBI sifting for clues in mountains of evidence

Software tools offer limited help to federal agents analyzing thousands of hours of video recordings

The FBI said it has received a “tremendous” amount of video from the public taken near the Marathon’s finish line where bombings killed three people and stunned the nation Monday.

Crucial evidence could turn up in video shot on smartphones and other recorders. The challenge: How to sort through all those images quickly and effectively.

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