The third American health worker to contract the Ebola virus in Liberia was an obstetrician at the ELWA hospital, which is run by the missionary group SIM. Ahmed Jallanzo/EPA/Landov hide caption

itoggle caption Ahmed Jallanzo/EPA/Landov

Gravel helps keep the floor level and prevents moisture from seeping up. The floor installers are Jean Pierre (left), a mason, and Daniel Shenyi, operations manager for EarthEnable. Courtesy of EarthEnable hide caption

itoggle caption Courtesy of EarthEnable

Actress Jennifer Lawrence is one of the celebrities whose private photos were stolen, raising questions about storing personal data online. Arthur Mola/Arthur Mola/Invision/AP hide caption

itoggle caption Arthur Mola/Arthur Mola/Invision/AP

The murals by Diego Rivera and other works at the Detroit Institute of Arts would be safe from creditors under the plan before a bankruptcy judge Tuesday. Carlos Osorio/AP hide caption

itoggle caption Carlos Osorio/AP

An Afghan policeman searches a man at a checkpoint where a NATO soldier was stabbed to death in Kabul on Aug. 20. As U.S. and NATO troops are drawing down in Afghanistan, the Taliban have been stepping up attacks this summer. Shah Marai/AFP/Getty Images hide caption

itoggle caption Shah Marai/AFP/Getty Images

Lindolfo Carballo, an immigrant from El Salvador, meets his son, Raynel, outside school. In El Salvador, he says, families often "teach their boys one thing and their girls differently." He's trying to set a different example for his children. Sarah Tilotta for NPR hide caption

itoggle caption Sarah Tilotta for NPR

A woman gathers shells along the ocean near the Revel Casino Hotel in Atlantic City, N.J., early Tuesday. The casino resort has closed, a little over two years after opening with the promise of helping to renew Atlantic City. Mel Evans/AP hide caption

itoggle caption Mel Evans/AP

Russian Foreign Minister Sergei Lavrov called Monday for a cease-fire in Ukraine, but demanded that Ukrainian troops leave positions from which they can "harm the civilian population." His comments come ahead of talks in Minsk, Belarus, involving Ukraine, Russia, Russia-backed separatists and international monitors. Jia Yuchen/Xinhua /Landov hide caption

itoggle caption Jia Yuchen/Xinhua /Landov