In Sensation Comics #81 (1948), written by Robert Kanigher with art by Harry G Peter, Wonder Woman battles against the forces of bigotry as a political militia known as the Green Shirts (An obvious reference to Italian Black Shirts and German Brown Shirts) terrorize the immigrants of a local town. Their slogan is 'America for Americans' and they are lead by Dr. Frenzi, a balding, stocky and aging old man with small hands, whom after delivering a speech to a rally is revealed to be riling up the town's fears for the money.
The Holiday Girls alert Wonder Woman to the situation, but Wonder Woman and the collage girls are subsequently kidnapped. Dr. Frenzi ties the girls below a cement machine and threatens to drown them in the solution unless Wonder Woman addresses the nation through the miracle of radio and endorses the Green Shirts.
Wonder Woman only escapes -
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with the aid of disaffected Green Shirt members who now recognize Dr. Frenzi as a fraud.
At the end of the issue Wonder Woman delivers a speech renouncing the evils of bigotry, but that who fall sway to such rhetoric are not irredeemable.
When I read this comic I was genuinely shocked at how topical it was and it is clear the creators knew the importance of this issue. H. G. Peter pencils some of his best work and this is likely the best issue Robert Kanigher produced in his 22 year old Wonder Woman run. I would highly recommend all Wonder Woman fans take a look at this issue as well as Kanigher's other WW work, but not the issues that are straight up Romance comics.