Varying Viewpoints: Did Communism Threaten US Internal Security after WWII?

Yes, communism did threaten US internal security after WWII. Prominent government officials were accused of being communist and helping out the Soviets. People like Klaus Fuchs and Theodore Hall of the Manhattan Project were giving Soviets information on how to make the atomic bombs. William Perl, an aeronautical scientist, told the Soviets how to make better planes than the US, which they did. Secrets were being told about the downfalls of our government, which could have aided the Soviets in an attack if they wanted to attack us. There were multiple things going on to scare the government and threaten the security.