Conversation so far:
where are nuclear bombs stored in the us
About 400 nuclear-tipped missiles are stationed underground in Colorado, Wyoming, Montana, Nebraska, and North Dakota.
what is the damage one nuclear-tipped missle can do
A W78 causes a mile-wide radioactive fireball and can destroy most buildings—and humans—in a circle about 4 miles wide.

Question: who controls the use of the missles
Self-contained rewrite: who controls the use of the nuclear-tipped missles