Espionage act 1917  Sedition act 1918
notably criminalized speech and the expression of opinion that cast the government or the war effort in a negative light......

 

http://en.wikipedia.org/wiki/Sedition_Act_of_1918

 

http://www.spartacus.schoolnet.co.uk/FWWespionage.htm

 

Just so happened I remembered this today...... far as I know, this may still be the law !!!
Look for it coming to your town soon :shock

 

Lewis Brackett