WASHINGTON, DC – JULY 4: (AFP-OUT) U.S. President Barack Obama and First Lady Michelle Obama walk from the Truman Balcony as they go to greets members of the crowd as he welcomes members of the White House staff and armed servicemen and women at an Independence Day barbeque on the South Lawn of the White House on July 4, 2011 in Washington, D.C. The Obamas hosted the barbeque for members of the armed services and White House staff and their families. (Photo by Kevin Dietsch-Pool/Getty Images)