Because when you have information like that and you're as evil as Iran, you don't just give out information of that caliber out for free. You use it as leverage to get what you want.
Seems pretty foolish as that kind of information would do exactly what they would want, discredit the US government and show them to be liars and frauds. Why would that be held back? I'm pretty sure they'd be showing the masses, rallying people up by now if it were true, but what do I know....
But on the other hand, if they do know and don't prove it, they have complete control over the Obama administration. They want to continue their nuke plans without bother? This will make it simple for them. Obama would do whatever it takes to not have that sort of information come out. It would completely discredit him, destroy his chances for reelection, and probably get him impeached. He will bend over backwards for Iran if they can actually prove it.
lets all move to iran and pledge our allegiance to them! im sooo happy they finally showed our govt to be corrupt.
People are so confused right now that anyone can prove anything and still everyone believes anything.
Iran is being a troll they just want to stir up anti US sentiment if you ask me, The US would be absolutly stupid not to mention how strategicly irrational it is to pretend to shit on pakistans soverinity for anything other then to get Osama, they are vital to our goals in that region Iran will say almost anything to get international attenion, they have always been like that
if they had proof they would have shown it by now.. and if they do show it, it will be denied by the US and therefore false anyway. the mainstream media either wouldn't be allowed to show it, or they'd mock it.. leaving places like infowars to show it..