Who You Calling Bush-cheney Lite?

Basically, a continuation of the Bush doctrine of unilateral pre-emptive attacks in the mid-east, with Obama adding Pakistan to the list.

If a unilateral pre-emptive strategy of attacking a 'target' is the doctrine, then why isn't Saudi Arabia, where Al Qaeda began and home to most of the 9/11 terrorists, also a potential target?

We, alot of times, use the "Republican lite" term, but "Bush Cheney lite" is quite an escalation. And coming from Obama, whose only serious distinction from Clinton comes from 5 years ago, it seems another slip. Does Obama have anything else to back up the differentiating claim since he's been a Senator? Since he doesn't, what does that say about him as a Senator?