BEECHER FALLS, VT - MARCH 23:  A U.S. Border Patrol agent stands along the boundary marker cut into the forest marking the line between Canadian territory on the right and the United States March 23, 2006 near Beecher Falls, Vermont. As American politicians continue to debate immigration reform, Border Patrol agents work the northern border to prevent illegal entry.  (Photo by Joe Raedle/Getty Images)