Pressure mounting on Obama over pipeline decision - Article Photos 5/5

FILE - This Jan. 24, 2012 file photo shows protestors against the Keystone XL pipeline, dressed as referees, hold banners spelled "Foul Play" during a rally on Capitol Hill in Washington. Embarking on a second term, President Barack Obama faces mounting pressure on a decision he had put off during his re-election campaign: whether to approve the $7 billion proposed Keystone XL oil pipeline between the U.S. and Canada.(AP Photo/Manuel Balce Ceneta, File)