In this image taken from a November 2012 video, Cecil the lion is shown in Hwange National Park in Zimbabwe. Paula French via AP hide caption

itoggle caption Paula French via AP

A farmer stands near a field in South Hwanghae, North Korea. Wong Maye-E/AP hide caption

itoggle caption Wong Maye-E/AP

Shoppers make their way in a Tehran bazaar. Once international sanctions are lifted, $100 billion from Iranian oil sales will be released from escrow accounts. Vahid Salemi/AP hide caption

itoggle caption Vahid Salemi/AP

President Barack Obama walks with Brazilian President Dilma Rousseff, second from right, during a visit to the Martin Luther King Jr. Memorial in Washington, D.C., on Monday. Evan Vucci/AP hide caption

itoggle caption Evan Vucci/AP