[coolhanded]

Sorry to waste all that space, now I'm going to use more. I don't understand what you mean. If he reraises, the A didn't hurt him----that's information. If he calls, he doesn't have AA (or probably AK), which leaves KK as the only better hand he could have----that's information. If he folds, you win the pot and feel very smart. I do like Spydog's point that this could be and expensive move on the turn-----leading the turn with a bet might be good enough.