Well President Harry S. Truman wanted a new weapon to end the War and on August 6, 1945, Enola Gay dripped the bomb over Heroshima a Japanese city.
Not sure if this is the answer your looking for but one could be They reacted to it harshly, and were suspicious of all immigrants that came to American from a communist country
Answer:
Democracy was being gravely threatened.
Explanation:
Hitler had a lot of power and when he invaded France, everyone knew Democracy was in danger.