U.S. President George W. Bush signs H.R. 6061, the Secure Fence Act of 2006, in the Roosevelt Room of the White House in Washington October 26, 2006. Bush signed legislation on Thursday to build 700 miles (1,126 km) of fencing along the U.S.-Mexican border, an election-year move against illegal immigration aimed at helping Republicans. REUTERS/Jason Reed (UNITED STATES)