U.S. President Barack Obama walks from the podium after delivering remarks on mine safety in the Rose Garden of the White House in Washington, April 15, 2010. With Obama are (L-R) Joe Main, Assistant Secretary of Labor for Mine Safety and Health, U.S. Secretary of Labor Hilda Solis and Kevin Stricklin, U.S. Mine Safety and Health Administrator. REUTERS/Jason Reed (UNITED STATES - Tags: POLITICS)