You know, back in the Roman days, the Romans went after a guy (I can't recall his name), but the Romans never killed this guy. He died of a disease and his people buried him in a river. They damned up the river, dug a grave in the river bed and released the damn. The Romans never found him and spent a lot of cash looking for him.
Also, on our side, if we tell he American people Osama is dead, they will think that the war is over. Even if we get Bin Laden, that does not mean the WOT is over.
So, I don't think it would be in our interest to get him or announce that we got him. We must continue the fight against terrorism until our enemy loses the will to fight. We at home need to stand firm and not waver, tire, falter, or fail. Peace and freedom will prevail - W