They already have nukes and we have no clue where they are... or maybe you think killing a few 10s of million of people instead of just talking to them is preferable...
IMO we cant just bomb that NK reactor like the Israelis did when Iraq was trying to build one in the early 80s. The NK reactor has been used and bombing it would cause a very significant radiation problem IMO. The Iraqi reactor was under construction and they took it out before it was ever used.
There has to be a difference between how you react to a country that has working nukes and one that does not. It is like dealing with two punk kids, one that has an attitude and one that has a loaded .38 - you can just kick the first one's butt but you have to be more careful with the one that is armed.
That is the very reason we have to deal with Saddam now, before he gets nukes and becomes another kid on the block with a loaded .38.