US President Barack Obama is seen in a mirror as he speaks about the attack in Nice, France while addressing ambassadors to the United States during reception in the East Room of the White House July 15, 2016 in Washington, DC. Obama decried the deadly truck attack in Nice as a "tragic and appalling" on freedom and pledged firm US support for France. / AFP PHOTO / Brendan SmialowskiBRENDAN SMIALOWSKI/AFP/Getty Images