Task: Question Answering
Input (English): passage: The Supreme Court has held that ``advocacy of the use of force'' is unprotected when it is ``directed to inciting or producing imminent lawless action'' and is ``likely to incite or produce such action''. In Brandenburg v. Ohio (1969), the Supreme Court unanimously reversed the conviction of a Ku Klux Klan group for ``advocating ... violence ... as a means of accomplishing political reform'' because their statements at a rally did not express an immediate, or imminent intent to do violence. This rule amended a previous decision of the Court, in Schenck v. United States (1919), which simply decided that a ``clear and present danger'' could justify a congressional rule limiting speech. The primary distinction is that the latter test does not criminalize ``mere advocacy''.
 question: is there a limit on freedom of speech?
Output (English): Yes