Can The Secret Service Tell You To Shut Up?

“Permitting people to express publicly their opinions to the president only at a time and in a place and manner such that he cannot hear them violates the First Amendment, which guarantees the right to useful speech - unheard political speech is politically useless. The same may be said of the rights to associate and to petition. If peaceful public assembly and public expression of political demands on the government can be restricted to places where government officials cannot be confronted, then those rights, too, have been neutered.”