How Did Bin Laden Escape?

http://www.cnn.com/2011/WORLD/asiapcf/04/27/osama.escape/index.html?hpt=Sbin

One statement sums this question up.  Bin Laden escaped simply because we let him.  Bin Laden was an excuse to go to war.  Wars make money.  While the U.S. Treasury is losing money at an alarming rate, private industry supplying military hardware is rolling in the dough.