Kerry answers about how the president has that right and he will protect that right but how you should talk to your friend and other members of the global community to get them to understand what is going on, etc..
Complex answer, describes exatly what you should do, he nailed it.
Bush answers, global what? You use unilateral force to protect america regardless of what the world says.
Simple, common sense, overbearing, he nailed it.
They both came away thinking, "oh yeah, we nailed that one."