Marines hold umbrellas as President Barack Obama and Turkish Prime Minister Recep Tayyip Erdogan participate in a joint news conference in the Rose Garden of the White House in Washington, Thursday, May 16, 2013. (AP Photo/Charles Dharapak)

Photo by: Charles Dharapak

Marines hold umbrellas as President Barack Obama and Turkish Prime Minister Recep Tayyip Erdogan participate in a joint news conference in the Rose Garden of the White House in Washington, Thursday, May 16, 2013. (AP Photo/Charles Dharapak)