Base your answer on the passage below and on your knowledge of social studies.
. . . It has been impossible in so short a space to review the entire menace of the internal revolution in this country as I know it, but this may serve to arouse the American citizen to its reality, its danger, and the great need of united effort to stamp it out, under our feet, if needs be. It is being done. The Department of Justice will pursue the attack of these "Reds" upon the Government of the United States with vigilance, and no alien, advocating the overthrow of existing law and order in this country, shall escape arrest and prompt deportation ....

- Attorney General A. Mitchell Palmer, "The Case Against the 'Reds'," 1920


The alleged danger referred to in this passage contributed to the