The fear of nuclear technology changed the lives of Americans because it makes them be more cautious in different matters like constructing a basement on their homes prepared to support a nuclear bomb or attack. Or train how to react in case that a nuclear attack comes, not only physically but psychologically. It makes the scientists study and learn how to cure or treat several effects of nuclear attacks or accidents on people. It makes the whole society get prepared as much as they can in order not only to prevent an accident but also to treat an react as better as they can after one event like this.
