BARACK Obama (top left) has aligned himself with Nicolas Sarkozy (centre) and David Cameron by committing to support military action in Libya until dictator Gaddafi is gone. The leaders write that the world will be guilty of an “unconscionable betrayal” if the Libyan leader is left in place, putting the fate of citizens who have held out against the dictator in the hands of a merciless militia intent on revenge. Colonel Gaddafi must “go and go for good” before the rebuilding of Libya can begin, they say in today’s Times, rejecting demands for an immediate ceasefire and a negotiated exit for the Libyan dictator, which could have left his family in charge.