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active shooter training brown dnt lead_00001722
active shooter training brown dnt lead_00001722

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    'Active shooter' training becomes the new normal

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'Active shooter' training becomes the new normal

Mass shootings have become so prevalent in the U.S. that training for those scenarios has become commonplace for civilians as well as law enforcement. CNN's Pamela Brown reports.

'Active shooter' training becomes the new normal

Mass shootings have become so prevalent in the U.S. that training for those scenarios has become commonplace for civilians as well as law enforcement. CNN's Pamela Brown reports.