The Monsters are Due on Maple Street

“The tools of conquest do not necessarily come with bombs and explosions and fallout. There are weapons that are simply thoughts, attitudes, prejudices to be found only in the minds of men. For the record, prejudices can kill and suspicion can destroy, and a thoughtless frightened search for a scapegoat has a fallout all its own for the children, and the children yet unborn.”

Serling has a lot of meaning in this statement and it makes complete sense. Every generation has that group of bad people who have these "thoughts" that another group of people are bad or even they mix and trick people into thinking that it's so. For example, Hitler was a dictator in Germany. He brainwashed his country into thinking that they are the dominant race and everyone else deserved lesser than them. As a result, millions of people died. It was an epidemic, yet there were many other incidents such as the Salem Witch Trials. A group of girls turned their whole community against each other and innocent people suffered the consequences. But I guess that's how our world works. While there's the "Yin", such as the bad, there is the "Yang", such as the good, who have no desire less than to stop the bad. Even so, that's how the world goes 'round. It seems that's what Serling is trying to convey.