Rory McIlroy of Northern Ireland plays out of the bunker on the 18th hole during a practice round ahead of the British Open Golf Championship at Muirfield, Scotland, Wednesday July 17, 2013. (AP Photo/Peter Morrison)
President Obama helps students as they work on a school project about the G-8 summit during a visit to the Enniskillen Integrated Primary School in Enniskillen, Northern Ireland, Monday, June 17, 2013. (Associated Press)
** FILE ** Russian President Vladimir Putin gestures while speaking during a media conference after a G-8 summit at the Lough Erne golf resort in Enniskillen, Northern Ireland, on Tuesday, June 18, 2013. (Associated Press)
Russian President Vladimir Putin, left, looks toward British Prime Minister David Cameron, center, and U.S. President Barack Obama during group photo with G-8 leaders on Tuesday, June 18, 2013, in Enniskillen, Northern Ireland. (AP Photo/Evan Vucci)
U.S. President Barack Obama delivers a keynote address ahead of the G-8 summit at Waterfront Hall in Belfast, Northern Ireland on Monday, June 17, 2013. (AP Photo/ Paul Faith, Pool)
Russian President Vladimir Putin is expected to meet privately with President Obama during the G-8 summit in Northern Ireland, but maybe not at a pub. (Associated press)
Rory McIlroy, of Northern Ireland, watches his putt on the first green during practice for the U.S. Open golf tournament at Merion Golf Club, Tuesday, June 11, 2013, in Ardmore, Pa. (AP Photo/Darron Cummings)
President Obama gestures during a joint news conference with British Prime Minister David Cameron on Monday, May 13, 2013, in the East Room of the White House in Washington, where they talked about subjects ranging from Syria's civil war to preparations for a coming summit in Northern Ireland. (AP Photo/J. Scott Applewhite)