same m.o. as per BillyBob. the IRS office in Denver said it is a scam call, and suggested that people call 1-800-366-4484. It is a Federal office in D. C. that investigates these scams. Agent said to NOT bite on these scams, but to call the above number. A sheriff in Wis. said the call he rec'd originated in Afghanistan, and the scum admitted it was a scam.