Law enforcement is defense. We can't remain on defense or the problem will only grow. The military is the offense. We can't win the game with only defense. The Bush approach (and the correct approach, IMO) is that we have the accelerate change in that region and get change the culture of death in the mideast. Otherwise, we'll be playing this game with defense only for the next 100+ years.
George Patton said that even a lousy offense is better than the best defense. One cannot win a war on defense. The Frenchies found that out real quick when the "impregnable" Maginot Line was outflanked with hardly a shot. We spent 25 yrs trying to fight a defensive war against terror. The only successes we had in it were when we took the fight to the enemy--bombing Qaddafi and overthrowing the Taliban and Saddam. Everything else was defensive and failed.