Shortly after 9/11, some anti-Castro groups in the US accused Castro's government of having weapons of mass destruction. Castro, noted for watching CNN all the time, immediately invited inspectors from the US to look around freely in the Cuban pharmaceutical industry to their hearts content to avoid mass US bombing.
Those anti-Castro groups thought this isn’t great time to cash in on America’s paranoia heightened sense of security so let’s just aim the mania at Cuba. Two birds as it were.
Saddam was a predictable idiot who couldn't see the US coming for him a second and final time. He might still be in power in Iraq today if he tried harder to not be a target.