From left, Samantha Cameron, wife of British Prime Minister David Cameron, first lady Michelle Obama, British Prime Minister David Cameron and President Barack Obama wave from the balcony of the White House, Wednesday, March 14, 2012, during a state arrival ceremony on the South Lawn. (AP Photo/Carolyn Kaster)
Waving from the balcony of the White House in Washington on Wednesday, March 14, 2012, are (from left) Samantha Cameron, wife of British Prime Minister David Cameron; first lady Michelle Obama; Mr. Cameron; and President Obama. (AP Photo/Carolyn Kaster)
