Why am I an Iconoclast? . . . Sir, I am a seeker of Truth. . . . W]hen you get an idea, put it on the anvil and bid the world hit it with the heaviest sledge. The more you hammer Truth the brighter it becomes." When an enraged reader gunned him down in Waco, April Fool's Day 1898, William Cowper Brann had published The Iconoclast, the nation's most controversial magazine, for some forty months. It was the only American journal to claim a quarter-of-a-million...