If the USA had OBL, his people would be going public with the fact that they haven't seen nor heard from him. It would benefit them to show that the American infidels are not reporting his capture. It would cause a lot of problems in the USA (more than we already have)
I think the more likely scenario is that we are 'watching' him. Letting him go around and meet with all his people, and identifying them, and we are slowly and surely unraveling his group. It's the smart thing to do. We can learn all their plots and plans and the US gov. will look really good for thwarting their attacks.
Who knows? He may have been blown to bits in the initial attacks
