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Associated Press
This undated image provided Aug. 1, 2012, by the City of Houston shows a scene from a video the city of Houston made to teach people how to react in the case of an active shooting situation using a short, three-word mantra.  Run, hide, fight. The short, 5 minute 55 second clip was released by the city days after an attack in an Aurora, Colo., movie theater killed 12 people. (AP Photo/The City of Houston)

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