Got a call didn't answer.  Voicemail stated with Indian accent; This is Mark ...(couldn't understand the last name) from the investigation department at the IRS.  I need to call them back to clear up my investigation before anything goes wrong.  If I don't, they will contact my local police department to have me arrested.

Amazing, a hard sell.

i got the same,i told them to [***] off,they said i will be arrested