Yeah he does say that. Yet he considers it an INFORMATION WAR. A war for your mind. NOT a physical and thus VIOLENT war. He does not endorse violence.
EDIT: The only violence I've seen him endorse and that also has been used on him the same way. Is to offer to box someone in a ring and have the proceeds go to charity. I suspect some of the people had they taken him up on it would have kicked his ass.