— IRS imposters are back at their old game – but this time, with a new twist. The IRS has reported that this current scam is being seen all across the country. How it Works:   Scammers call taxpayers to claim the IRS has already mailed them two certified letters about an outstanding tax bill, but the letters were returned as undeliverable. The scammer threatens immediate arrest unless the tax bill is paid using a prepaid debit card. The scammer falsely …