Can't say that I've heard that rumor being confirmed or not. One thing is for sure...if he is in one place and can't get out...well, his goose is a cooked and cooked well-done.
Let's face it from the military viewpoint of what happened. They went after the Pentagon. Good thought, didn't completley work. What happened as a result? You humiliated the military "head" of the US. Do you think they'll stand for that. Hell no. If the military can get Bin Ladin alive, they will most certainly do it as long as it doesn't cost lives. Why? Because if he is behind everything, then the population of the US will want that trial aired, and they will be expecting that death penalty ruling. And when it comes (and believe me, if it goes to trial, he will get the death penalty if he lives that long) to that ruling being anounced, you'll see a lot of Americans dancing in the streets.
Of course, I doubt they'll be able to get him alive, if he is the one behind everything. If they can't get him alive, they'll have no problems bombing him all the way to East Bumblef***.