Sports San Francisco Giants Visit The White House July 25, 2011 / 2:35 PM PDT / CBS News Obama Welcomes MLB World Champion San Francisco Giants To White House Obama Welcomes MLB World Champion San Francisco Giants To White House Obama Welcomes MLB World Champion San Francisco Giants To White House Obama Welcomes MLB World Champion San Francisco Giants To White House Obama Welcomes MLB World Champion San Francisco Giants To White House Obama Welcomes MLB World Champion San Francisco Giants To White House San Francisco Mayor Ed Lee (Photo by Win McNamee/Getty Images)