Clear and Present Danger Rule

“The ‘clear and present danger’ rule means that the evil consequence of the comment or utterance must be extremely serious and the degree of imminence extremely high’ before the utterance can be punished. The danger to be guarded against is the ‘substantive evil’ sought to be prevented.” It has the advantage of establishing according to the above decision “a definite rule in constitutional law. It provides the criterion as to what words may be public established.”