What is the cartoonist's attitude toward the attempt to uncover communists? red scare or red smear

It was a "smear" campaign--the cartoon shows how there is a "spraying" of red or communistic thought. 

The cartoon was created to criticize the government's smear campaign of anyone suspected of being a communist. People were interviewed and ruined within their careers when labeled a communist. It was a general spray of the population instead of a targeted investigation. 

The led the formation to the united states