That's a good question. During the cold war there was actually a real chance that we could jointly blow up most of the world in a fight with Russia and yet people didn't seem as afraid as they do now.
I don't think its an accident. Eisenhower was right about the military/industrial complex. We have that now more powerful then he could have imagined and it needs never ending fear to justify the insane amount we spend on "security" and "defense". About Bill O'Reilly Read the Article at HuffingtonPost