"IRS" scammer with an Indian accent. His message went like this: "My name is Kevin Mason and I'm calling regarding an enforcement action executed by U.S. Treasury intending your serious attention. Ignoring this will be an intentional attempt to avoid initial appearance before a magistrate judge, or a grand jury, for a federal criminal offense. My number is (213) 426-1645. I repeat, (213) 426-1645. I advise you to cooperate with us, and help us to help you. Thank you."