How Security Video Helped Authorities Identify Possible Boston Marathon Bombing Suspect

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When the bombs went off at the Boston Marathon, social media networks lit up with cell phone pictures and videos. Investigators requested that anyone with footage of the attacks share them with authorities. While that information may have been helpful, the key technology used to identify the bombing suspect was Closed Circuit Television footage. There have been huge advancements in this technology over the past decade.

John Cutter, former Commanding Officer for the NYPD's Criminal Intelligence Section, discusses CCTV and cell phone tracking technology, and their legal implications.