carlo_allegri-reuters_obama_memorial_dallas_7.12.16

U.S. President Barack Obama speaks during a memorial service following the multiple police shootings in Dallas on July 12, 2016. Photo by Carlo Allegri /REUTERS, courtesy of The Texas Tribune.

U.S. President Barack Obama speaks during a memorial service following the multiple police shootings in Dallas on July 12, 2016. Photo by Carlo Allegri /REUTERS, courtesy of The Texas Tribune.

U.S. President Barack Obama speaks during a memorial service following the multiple police shootings in Dallas on July 12, 2016. Photo by Carlo Allegri /REUTERS, courtesy of The Texas Tribune.