Agence France-Presse: Disappointment at the outcome of a United Nations-sponsored climate change conference in Copenhagen is “justified,” US President Barack Obama said in a US television interview on Wednesday. “I think that people are justified in being disappointed about the outcome in Copenhagen,” he told the PBS Newshour program. “What I said was essentially that rather than see a complete collapse in Copenhagen, in which nothing at all got done and would have been a huge backward step, at …