I'm hoping you didn't think that through before hitting the post button. If you did, well...crack a book or two. Soon.
stuck_in_new_orleans: Nuke a nuke plant? You dumb or what?
FreedomPoster: Yeeeaaaaahhh. No.
I notice there's no "why" in any of these answers. That's because the physics works. You have to compare the damage of a nuclear explosion to the damage of a years-long leak of radioactive materials. Properly placed, a bomb of the right size would vaporize and burn out all of the radioactive materials, which would then be dissipated in the air as short-halflife ash and the problem is over. Compared to leaking radioactivity into the ocean for the next hundreds of years, that's preferable.
Science. Try it.