How to protect against the "weapons" of the atomic bomb: blast, heat, and radioactivity. You'll be glad to know that most people in Japan who suffered from radiation sickness recovered fully and had "normal" children. Also solid walls can protect you from the heat, and a well-constructed building can protect you from the blast, provided you avoid flying glass and debris. If an atomic attack happens, our factories, offices, and homes will be battle stations and posts of duty, not to be deserted. What's needed is a basement if you have one (with a heavy bench to hide under), or a first floor interior hallway if you don't. Apartment dwellers should go to civil defense shelters -- memorize their locations. Be sure to have a couple of canned goods ready. Also a bottle of water, a flashlight, and a radio. Listen for the warning sirens and act fast. If there is no time for advanced warning, dart into a nearby doorway or just lay down where you are and duck and cover. The danger should pass in a minute or so -- unless the blast is on the ground or water. Then radioactive dirt and water will be falling from the air. In that case, cover your windows with blankets, If you are exposed to radiation, wash -- especially your hair. If the people of Hiroshima and Nagasaki had known about these tips...well, things would have ended much differently, for sure.
So don't worry much about an atomic bomb attack. It will probably be no big deal.
A laughable eight and three-quarter minutes for those of us from the drop-and-cover generation. No mention of private fallout shelters, though.