President Obama meets Saudi King Salman bin Abdul Aziz in Riyadh in January. The president is hosting King Salman at the White House Friday. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

Abdullah Kurdi, father of 3-year-old Aylan and his brother, Galip, age 5, whose drowned bodies both washed up on a Turkish beach. Mehmet Can Meral/AP hide caption

itoggle caption Mehmet Can Meral/AP

Washington Post Iranian-American journalist Jason Rezaian, seen here with his wife, Yeganeh Salehi, has been held prisoner since he was arrested in Tehran last July. On Thursday, a powerful Iranian politician said of a potential prisoner swap, "That's one way." EPA/Landov hide caption

itoggle caption EPA/Landov

Dalaa al-Aydi, 4, and her family left Syria just before the start of the civil war. Her only memory of Damascus is, "Takh, takh," the sounds she makes mimicking the gunfire. Holly Pickett for NPR hide caption

itoggle caption Holly Pickett for NPR

A Turkish paramilitary police officer carries the body of 3-year-old Aylan Kurdi, found washed ashore near the Turkish resort of Bodrum early Wednesday. The boats carrying the boy's family to the Greek island of Kos capsized. His 5-year-old brother and mother also lost their lives. DHA/AP hide caption

itoggle caption DHA/AP