What restrictions on freedom of speech did mccarthyism lead to?

In 1941, before the United States entered World war ll, President Roosevelt enumerated the four Freedom required for World peace and for which world war ll was being fought freedom of speech, freedom of religion freedom from want, and freedom from fear.

The extreme anti communism in America politics and society during the early 1950s. The term derives from the actions of senator Joseph McCarthy, who led and intense compaign against alleged subversives during this period

Ou realize of course that your IP and MAC adresses have been recorded in the NSA's database... 

There are no restrictions, only penalties.

1920 census

the census was scheduled for january the 1st, as the government believed that more farmers would be in their homes by that time instead of april. the census did not ask about unemployment, the number of children, and how long was a couple married were not taken into consideration. individuals were considered as residents of the places they normally slept, not the places were they worked at or visited.

2010 census

the census was scheduled for april 1st, 2010. it was the shortest census in history: it only contained 10 questions related to name, age, gender, ethnicity, relationship, and whether the citizen owned a home or rented one. the government launched a website in order to provide the citizens with information regarding the census. there were also "teach census weeks" in schools nationwide.