redscare Paranoid period Old anti-Communist phenomenon McCarthy-era obsession McCarthy era phenomenon Fifties fear 20th century witch hunt 1950s paranoia '40s-'50s paranoia that led to blacklisting '40s-'50s paranoia 1950's political phenomenon Old anti-Communist reaction Past paranoia producer Cause for some blacklisting McCarthyite paranoia McCarthy-era paranoia *Fearful 1917-20 period Reason for some blacklisting Post-WWII fear of infiltration apparently confirmed by four puzzle answers