The ardent supporters of Rep. Ron Paul, the iconoclastic Texas libertarian whose campaign for the presidency is threatening to upend the battle for the Republican nomination, got word yesterday of a new source of outrage and motivation: reports of a federal raid on a company that was selling thousands of coins marked with the craggy visage of their hero. Federal agents on Thursday raided the Evansville, Ind., headquarters of the National Organization for the Repeal of the Federal Reserve Act and Internal Revenue Code (Norfed), an organization of "sound money" advocates that for the past decade has been selling a...