Guardian: Barack Obama has given the strongest indication to date that he holds reservations about the Keystone XL tar sands pipeline, saying the project would not create many jobs and could raise gasoline prices. In an interview with the New York Times, the president disputed a main justification for the pipeline its economic benefits and reaffirmed he would reject the project if it expanded carbon pollution. The comments were seen by campaigners as evidence that Obama, in the wake of last month's landmark...