I re-dialed the 530 number just because I was curious (I realize that the IRS does not conduct business this way). I got the same guy - heavy Indian (?) accent - who left the message. He said a warrant was being issued for my arrest for under-reporting my income. I laughed and he said "the officers are on their way" then he hung up. Very bizarre.  He said he worked for the Justice Department. I'm guessing that if I had shown any concern, he would have told me we could "settle up" by supplying a credit card number!!