The 2011 raid leading to the death of al Qaeda leader Osama Bin Laden has once again become the centre of controversy.br br The White House and CIA have denounced as “utter nonsense” a report which diminishes what has arguably been depicted as President Barack Obama’s greatest foreign policy success.br br White House: Seymour Hersh story on bin Laden raid "riddled with inaccuracies" — Huffington Post (@HuffingtonPost) May 11, 2015br br br It has been claimed that both the US and Pakistan collaborated closely on the mission and hatched a cover story afterwards that said that Washington had acted unilaterally.br br Pulitzer Price winning journalist Seymour Hersh who was writing for the London Review of Books, alleges that instead of it being a secret risky US operation, two Pakistani generals had known in advance and facilitated raid.