Precursors to World War III?

Consider these facts, all over the news (I haven't bothered with any citations because this information is common knowledge):
(1) North Korea has nukes. The leader of this country is a megalomaniac and puts one in mind of Hitler and Stalin.
(2) Iran is fast developing nukes. Forget about that "peaceful purposes" nonsense--it's a smokescreen.
(3) As Iraqi nuclear expert Mahdi Obeidi has pointed out in The Bomb in My Garden, various scientists from the fallen Soviet Union and from Iraq have been unemployed since the fall of their regimes. These scientists have knowlege about nuclear weapons and bioweapons.

In the weeks following 9/11, our media evinced concern that such scientists and their weaponry knowledge are "on the loose." Lately, we haven't heard as much about those dangers, but they are still out there. Who is motivated to hire these scientists and to implement their weapons? Intelligence reports indicate that various Islamic terrorists are shopping around for such capabilities. Are we going to ignore that information?

Have we forgotten how, in the years leading up to the invasion of Western Europe, nations not directly affected ignored Hitler's and Hirohoto's buildup and expansiveness? The world was very fortunate in that those two megalomaniacs did not have access to nuclear weaponry. As awful as World War II was, the devastation then created was nowhere near the potential for destruction we face in the 21st century.

Negotiations with armed psychos does not work! History, both ancient and modern, proves that fact.