Andrew Bacevich's view of terrorist networks:
Osama bin Laden is not Adolf Hitler. Al-Qaeda is not Nazi Germany. Al-Qaeda poses a threat. It does not pose an existential threat. We should view Al-Qaeda as the equivalent of an international criminal conspiracy. Sort of a mafia that in some way or another draws its energy or legitimacy from a distorted understanding of a particular religious tradition.
And as with any other international criminal conspiracy, the proper response is a police effort. I mean, a ruthless, sustained, international police effort to identify the thugs, root out the networks and destroy it. Something that would take a long period of time and would no more succeed fully in eliminating the threat than the NYPD is able to fully eliminate criminality in New York City.
(Hat tip: Balloon Juice)