Video: Miami-Dade schools chief addresses threat

Superintendent Alberto Carvalho speaks at the School Board command center that is dealing with school-threat issues. Video by Charles Rabin/Miami Herald Staff
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Superintendent Alberto Carvalho speaks at the School Board command center that is dealing with school-threat issues. Video by Charles Rabin/Miami Herald Staff

‘Less than credible’ threat fails to close down Miami-Dade, Broward schools

December 17, 2015 06:04 AM