No really! Denial of the Keystone XL Pipeline Application, Media Note, Office of the Spokesperson, United States Department of State, Washington, DC, January 18, 2012.
And Obama's response: Statement by the President on the Keystone XL Pipeline The White House, Office of the Press Secretary, January 18, 2012
Joe Romm notes that the oil would go to China, the jobs to Canada and the extra carbon dioxide would go to global temperature increases - and asks was the decision really that hard?
See News for Denial of the Keystone XL Pipeline Application