The man U.S. claims to be Osama is he an imposture?

U.S officials know that the Pakistanis are not giving their 100%(as the U.S. wants them to) to eradicate Al-Qaeda or Taliban from their territory, so they planned to blame Pakistan for harboring Osama to embarrass them in front of the whole world which would trigger them to hunt down the rest of the Al-Qaeda and its allies. And of course not to forget about the up coming election of Obama. He wants to hoist his image as he has failed to fulfill his promises that he stipulated before the Americans as well as to the whole world. And about the forensic report, it is well know that each human being shares 99.9% same DNA sequence. So, if the suspect's DNA is compared with Barrack Hussain Obama people would find that so called Osama Bin Laden is the Obama's brother (as they put the similarity of DNA Osama in response to his sister). And we all know the latest and supreme technology is used by the U.S. so its is easily conceivable that the result/evidence is prone to temper or at least as they want the evidence to be.