"U.S. President Barack Obama speaks during <a href=""http://www.cnn.com/2016/07/12/us/dallas-police-shooting-officers-memorial/index.html"" target=""_blank"">an interfaith memorial service</a> for the victims of the Dallas police shooting on Tuesday, July 12. Obama sought to unify the country during the somber memorial in Dallas for the five police officers slain in a sniper ambush during what had been a peaceful protest. The incident occurred amid a tragic week for the nation that saw Alton Sterling in Louisiana and Philando Castile in Minnesota killed during encounters with police."
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