Israel has an estimated 200 nuclear weapons. I would imagine Saddam is more likely to blow his brains out with a revolver than use any nuclear weapons he might conceivably have on Israel.

And America has some 6000 nuclear weapons...

I get the feeling that some people have lost touch with reality about this kind of thing. There is no reason whatsoever to expect that Saddam is going to launch any kind of attack on anybody outside his own borders, and no reeason to think that his overthrowal will make it in any way reduce the possibility of major terrorist attacks in the rest of the world.

The central reasons for trying to get rid of him appear to be a)he is an extremely unpleasant dictator; and b) his presence interferes with the availability of Iraq's oil resources. Since those aren't things that would permit of a legal attack, other reasons to do with self-defence have to be paraded.