re: #6 Dr Lizardo

I could swear that’s highly similar to the plot of a made-for-TV movie broadcast back in the 1980s. I remember watching it as a kid - the only real difference was that in the TV movie, some terrorists had gotten hold of an actual nuke, and while military bomb-disposal experts were trying to defuse it, the nuke went off. If my memory serves my right, the Port of Charleston was the setting of this TV movie.

My Google Fu suggests you might be referring to a movie called Special Bulletin from 1983.