Napolitano speaks about the response to the massive oil slick in the Gulf of Mexico, at the White House in Washington

Janet Napolitano, secretary of the Department of Homeland Security, speaks about the response to the massive oil slick in the Gulf of Mexico, at the White House in Washington April 29, 2010. With Napolitano is Coast Guard Rear Admiral Sally Brice-O'Hara. BP Plc on Thursday welcomed an offer from the U.S. Defense Department to help contain a massive growing oil slick from a deadly rig explosion that threatens the shoreline of four Gulf states. REUTERS/Kevin Lamarque (UNITED STATES - Tags: POLITICS ENERGY ENVIRONMENT DISASTER)