Which event prompted the harshest crackdowns on free speech since the Sedition Act of 1798?

Question

Quizplus · Accepted Answer

The harshest crackdowns on free speech since the Sedition Act of 1798 occurred during World War I, with the passage of the Espionage Act of 1917 and the Sedition Act of 1918. These laws made it a crime to criticize the war effort or the government, and led to the arrest and imprisonment of thousands of individuals who expressed dissenting views.

Which Event Prompted the Harshest Crackdowns on Free Speech Since