The United States last week delivered a secret ultimatum to Baghdad, a warning not to use non-conventional weapons on any account in the coming conflict. DEBKA-Net-Weekly’s intelligence sources have learned that a secret high-level emissary entered Iraq under cover to put Baghdad on notice that if non-conventional weapons were wielded by Iraq, the US would not hesitate to level its cities with a nuclear bomb. Washington acted after discovering that Iraq had smuggled two or three nuclear devices at least into the United States for detonation by sleeper cells planted by Iraqi intelligence. The American ultimatum included a demand...