President Barack Obama prepares to board Marine One on the South Lawn of the White House, Feb. 28, 2010. The President traveled to Bethesda Naval Hospital in Bethesda, Md., for a routine physical exam and to meet with with wounded military members.

President Barack Obama prepares to board Marine One on the South Lawn of the White House, Feb. 28, 2010. The President traveled to Bethesda Naval Hospital in Bethesda, Md., for a routine physical exam and to meet with with wounded military members.