Would Sarah Palin be Ready to be President if Needed?

In an interview with ABC's Charlie Gibson, VP candidate Sarah Palin had a George Bush moment when asked a defense policy question.

"Do you agree with the 'Bush Doctrine' regarding anticipatory self-defense?"

"Well I don't know much about the Bush Doctrine I'm afraid, but I do love little kittens:)"

Ok, it didn't quite go that way, rather, this way:
(the "I do love little kittens" line was from comedien Harry Enfield)

"Do you agree with the Bush Doctrine?"

"In what respect, Charlie?"

"The Bush -- well, what do you -- what do you interpret it to be?"

"His world view."

Gibson: No, the Bush doctrine, enunciated September 2002, before the Iraq war.

After Palin gave a general answer, which dodged the question she wasn't sure of, the interviewer explained to her what the Bush Doctrine was.

GIBSON: The Bush doctrine, as I understand it, is that we have the right of anticipatory self-defense, that we have the right to a preemptive strike against any other country that we think is going to attack us. Do you agree with that?

The full interview is here in video, and text.

In other respects during the interview, Palin gave the appearance of confidence but some U.S. media are wondering does she have substance? Certainly the job of U.S. VP is not taught in in "VP101" classes usually, but she will need a great deal of tutoring soon.