An American president, himself the son of a Muslim father and a Christian mother, has taken down notorious terrorist Osama Bin Laden. Despite being a Christian, Obama, it seems to me, had a personal stake in destroying someone who had defamed the religion of his birth father and his relatives. His 2007-2008 presidential campaign was in part about the need of the US to refocus on the threat from al-Qaeda. He said that the Bush administration had taken its eye off the ball by running off to Iraq to pursue an illegal war and neglecting the eastern front, from which the US had been attacked, and where riposting was legitimate in international law. Obama began threatening to act unilaterally against al-Qaeda in Pakistan in August 2007, during the early period of the Democratic primary. Ironically, Obama had to admit that Pakistani intelligence helped the US develop the lead that allowed the US to close in on Bin Laden. So the operation was not unilateral, and young candidate Obama was too over-confident. The US story that the Pakistanis were not given prior notice of the operation is contradicted by the Pakistani news channel Geo, which says that Pakistani troops and plains clothes men helped cordon off the compound in Abbotabad. CNN is pointing out that US helicopters could not have flown so far into Pakistan from Afghanistan without tripping Pakistani radar. My guess is that the US agreed to shield the government of Prime Minister Yousuf Raza Gilani and President Asaf Ali Zardari from al-Qaeda reprisals by putting out the story that the operation against Bin Laden was solely a US one. And it may be that suspect elements of the Pakistani elite, such as the Inter-Services Intelligence, were kept out the the loop because it was feared they might have ties to Bin Laden and might tip him off.
