DALLAS, TX - JULY 12: Dallas Police Chief David O. Brown (R) embraces U.S. President Barack Obama during an interfaith memorial service, honoring five slain police officers, at the Morton H. Meyerson Symphony Center on July 12, 2016 in Dallas, Texas. A sniper opend fire following a Black Lives Matter march in Dallas killing five police officers and injuring 12 others. (Photo by Tom Pennington/Getty Images)
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Getty Images News Tom Pennington