Well, I've come to the conculsion that it was just for show. Bush and the Republican's in congress and senate don't really want to catch him. He's too valuable to them running loose and free.
Now I'm not the first to come to this conculsion. In fact I derided Bush for being an ADHD (Attention Deficit Hyperactive Disorder) president. To me he seemed to loose interest in Afghanistan and start up on Iraq (and now maybe Iran too).
But every time the Republican's slip in the poles, they trot out "9/11" and "Osama Bin Laden." And before any election, they trot out 9/11, Osama Bin Laden, sleeper cells, unkown plot against some US city, etc, etc.
He's their new "Boogey Man." Something, some one, that the Republicans can scare US citizens with to keep them in power. If they catch Osama Bin Laden, they will loose the "face" of their boogey man, and an important tool in maintaining power, no matter how corrupt that power is.