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Explosion injures four at UC Berkeley campus

Name: Explosion injures four at UC Berkeley campus
Uploaded: 2013-10-01T01:20:49-0400
Duration: 17 s
Description: Students at the University of California Berkeley are being allowed back on campus after an explosion from an underground electrical vault injured four people. Norah O'Donnell reports.

Students at the University of California Berkeley are being allowed back on campus after an explosion from an underground electrical vault injured four people. Norah O'Donnell reports.