Berlin residents Mareike Geiling (left) and her boyfriend, Jonas Kakoschke, speak with their roommate, a Muslim refugee from Mali. Geiling and Kokoschke helped launch a website that matches Germans willing to share their homes with new arrivals. Soraya Sarhaddi Nelson/NPR hide caption

itoggle caption Soraya Sarhaddi Nelson/NPR

Farmer Magoichi Shigihara checks on his cucumber farm in Nihonmatsu in Fukushima prefecture, about 31 miles west of the Fukushima nuclear power plant, in May 2011. Testing shows radiation in foods grown and raised in Fukushima is back to pre-accident levels. Yoshikazu Tsuno/AFP/Getty Images hide caption

itoggle caption Yoshikazu Tsuno/AFP/Getty Images

The most recent propaganda videos from Boko Haram have higher production values than in the past and other similarities to ISIS-produced videos. Boko Haram/Sendvid hide caption

itoggle caption Boko Haram/Sendvid

A man walks by with a basket of bread during the official presentation ceremony of three new robots that were installed Tuesday in Kinshasa, Democratic Republic of Congo, to help tackle the city's traffic. Federico Scoppa/AFP/Getty Images hide caption

itoggle caption Federico Scoppa/AFP/Getty Images