Yeah, I heard something like the russians would be nuking it by now, but I think they're worried it could split the thing wide open and do more harm than good. I think the theory is the nuke would fuse the rock together and seal the well, but they're uncertain about the effectiveness of the nuke at that depth.
You know its a tough one when its 5000ft below sea level, coming up at over 6000psi.
D.