US 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)

 

              US 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)
US 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)