Question

Which raids searched suspected Communists' houses without search warrants?
a. Vanzetti Trials
b. Palmer Raids
c. Red Scares
d. Communist Revolution

Answer 1

It was the "Palmer Raids" that searched suspected Communists' houses without search warrants, although it should be noted that this applied to a variety of far-left groups, not just communists. 

Answer 2

Answer : B, Palmer Raids