Dozens of African migrants cross into southern Israel through the border with Egypt last week. Construction has begun on a $270 million, 87-mile fence along the porous border. It's one of four measures proposed to try to stem the flow of African migrants into Israel. Assaf Golan/AP hide caption

itoggle caption Assaf Golan/AP

Turks wave flags to greet the aid ship Mavi Marmara on Sunday in Istanbul. Clint Willey for NPR hide caption

itoggle caption Clint Willey for NPR