[Spirochete]

(Maybe I misremember, but didn’t Joe go after The Army and The State Department? Others went after Hollywood).

You are correct. Sen. McCarthy had access to decoded Soviet diplomatic messages (the Venona papers).

A few people were falsely accused, lest the Soviets become suspicious.

[MrB]

I’m sure these leftists will be calling for the FBI to back off of the “militia” groups as well, and for the same reasons....

not holding my breath.