Video: Bill Buckley Jr on Drug Legalization

From Wikipedia:

George H. Nash, a historian of the modern American conservative movement, believed that Buckley was "arguably the most important public intellectual in the United States in the past half century... For an entire generation, he was the preeminent voice of American conservatism and its first great ecumenical figure."

So the man who defined modern conservatism was for the legalization of drugs? (And said George Bush wasn't a true conservative?)