How did americans prepare for possible communist attacks?

During the Cold War, America was constantly fearful of communist attacks and the Soviet Union in general. Below is a list of some of the actions taken by American citizens/government during this era:

1) Created fallout shelters: These basements/secret hideaways were supposed to provide protection for citizens in case of a nuclear war. This shelter would be stockpiled with food and water in order to ensure survival.

2) Duck and Cover: This was a method taught to students in school on how to protect yourself from a nuclear attack. This involved ducking under a desk and covering the back of their neck. The Duck and Cover video was shown to millions of students all over the country.