PBS NewsHour

Boston on High Alert After Blasts Rock Marathon Finish Line

Clip: 04/15/2013 | 2m 46s

The 2013 Boston Marathon was marked by blood and chaos when two explosions went off near the finish line, injuring scores of people and killing two. Gwen Ifill reports on this developing story, including whether a third Boston explosion is connected and how other major cities are taking precautions.

Aired: 04/15/13

Expired: 12/31/69

Rating: NR

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