Secret Service agents scout the scene prior to the arrival of President Barack Obama, who was scheduled to offer marks urging Congress to pass the infrastructure part of the American Jobs Act, in front of a crowd which included iron workers and steam fitters, at Georgetown Waterfront Park in Washington, D.C., Wednesday, Nov. 2, 2011. (Photo/Rod Lamkey Jr./The Washington Times)

Photo by: ROD LAMKEY JR

Secret Service agents scout the scene prior to the arrival of President Barack Obama, who was scheduled to offer marks urging Congress to pass the infrastructure part of the American Jobs Act, in front of a crowd which included iron workers and steam fitters, at Georgetown Waterfront Park in Washington, D.C., Wednesday, Nov. 2, 2011. (Photo/Rod Lamkey Jr./The Washington Times)