Scam call from irs

Man with accent claiming to be from IRS.

Recorded message saying that I was under a federal investigation and it was really important that I call back today.

Second call....same message....same voice.....same scam.  Need a new call type category:  fraud/scam.  Prank call somehow just doesn't fit.

I also received a call on April 8th, 2016 saying he was Officer Mike from the IRS dept. from Washington and it was very important to return his call.  Of course I was on to that and I returned the call this morning and bite his head off and said I was turning him over to the Police Dept. for frauding so many innocent people and he hung up on me.  Since this morning I have called 2 more times and I have threaten him and now he doesn't want to pick up the phone .  They are the same people who left a message saying she was Officer Kimberly Brown and I needed to return the call or I would be arrested..  (PEOPLE, THE IRS NEVER, EVER WILL CALL YOU ON THE PHONE.  IF YOU OWE THE IRS MONEY THEY WILL SEND YOU SEVERAL LETTERS BUT NEVER MAKE ANY PHONE CALLS OR THREATS, PER THE IRS).  Let's not fall for this crap.  I hope they catch these stupid scammers and put them behind bars because that is the only place they belong.