I've been getting this same call for months now, (sometimes up to 4 times daily!) Always saying it's the IRS, calling to say they're filing lawsuit against me. I sometimes wonder just how many people take the call seriously... perhaps causing heart attacks, even suicides, etc.(?) I wonder if these people have any sort of "conscience" at all. I read up on the scam, (even MS-NBC did a story on it), & it seems they want to steal your S.S. #, so whatever one does, don't give it to them! These scammers should, (in a fair & just world), be behind bars serving triple life sentences with no possibility of parole for this crud. (NOTE: if it really had been the I.R.S. calling, & I really owed them money; my initial, (perhaps "only"), response would be: "Well, good luck on that. You can't get blood from a turnip." -  'The Human Turnip'