U.S. President Barack Obama walks from the Oval Office of the White House following his announcement of a plan to crack down on manipulation in oil markets in Washington

 
U.S. President Barack Obama walks from the Oval Office of the White House following his announcement of a plan to crack down on manipulation in oil markets in Washington
U.S. President Barack Obama walks from the Oval Office of the White House following his announcement of a plan to crack down on manipulation in oil markets in Washington, April 17, 2012. With Obama are U.S. Attorney General Eric Holder (L) and Treasury Secretary Tim Geithner. REUTERS/Jason Reed (UNITED STATES - Tags: POLITICS BUSINESS)