The 1st Amendment guarantees the right of the people to "peaceably" do this
... people 
peaceably to assemble, but ruled the First Amendment guarantee... [DOC] [TLE] ThisNation.com--First Amendment: Speech [PAR] The second half of the First Amendment guarantees the rights of the people to 
express ... the freedom of speech, or of the press; or the right of the people 
peaceably to ...