A rioter with a Molotov cocktail in his hands is not fighting for civil rights any more than a Klansman with a sheet on his back and mask on his face. They are both more or less what the law declares them: lawbreakers, destroyers of constitutional rights and liberties and ultimately destroyers of a free America.

Lyndon B. Johnson: Containing the Public Messages, Speeches, and Statements of the President (ed. 1965)