First Amendment: This is an amendment to the U.S. Constitution that protects freedom of speech, religion, press, assembly and petition.
Espionage Act: A law passed in 1917 that prohibited interference with military operations or recruitment, prevented insubordination in the military, and supported wartime censorship.
Alien and Sedition Acts: These were four laws passed by Federalist-dominated Congress in 1798 during an undeclared naval war with France; they made it harder for immigrants to become citizens (Naturalization Act), allowed for deportation of foreigners deemed dangerous (Alien Friends Act), permitted arrest/deportation/imprisonment of any foreigner from hostile nations (Alien Enemies Act), and criminalized making false statements critical of federal government (Sedition Act).