A Tunisian woman wearing a 'burkini' walks in the water with a child on August 16, 2016 at Ghar El Melh beach near Bizerte, north-east of the capital Tunis. (FETHI BELAID/AFP/Getty Images)
(L) President George W. Bush views Hurricane Katrina’s devastation, August 31, 2005. (Paul Morse/White House/Getty Images) (R) President Lyndon B. Johnson views riot damage aboard a helicopter over Washington, DC, on April 7, 1968. (Frank Wolfe)
A French police officer stands guard by Saint-Etienne-du-Rouvray's city hall following a hostage-taking at a church in Saint-Etienne-du-Rouvray, northern France, on July 26, 2016 that left the priest dead. (CHARLY TRIBALLEAU/AFP/Getty Images)
Iraqi Christian children, who fled the violence in the Nineveh province, attend a mass with their mothers at a chuch in Dekwaneh, east of the Lebanese capital Beirut on March 21, 2015. (ANWAR AMRO/AFP/Getty Images)
The graffiti tagged on the wall of a house in the Iraqi city of Mosul, July 26, 2014. It reads in Arabic : 'Real estate property of the Islamic State (IS)'. (AFP/Getty Images)