President Barack Obama points upwards as he walks back to the Oval Office after speaking to reporters in the Rose Garden to highlight a new report on the impact of his $50 billion infrastructure-investment proposal, Monday, Oct. 11, 2010 at the White House in Washington. Walking ahead of Obama are from left to right, Secretary of Treasury Timonthy Geithner, former Secretaries of Transportation Norman Mineta and Samuel Skinner. (AP Photo/Pablo Martinez Monsivais)

Photo by: Pablo Martinez Monsivais

President Barack Obama points upwards as he walks back to the Oval Office after speaking to reporters in the Rose Garden to highlight a new report on the impact of his $50 billion infrastructure-investment proposal, Monday, Oct. 11, 2010 at the White House in Washington. Walking ahead of Obama are from left to right, Secretary of Treasury Timonthy Geithner, former Secretaries of Transportation Norman Mineta and Samuel Skinner. (AP Photo/Pablo Martinez Monsivais)