Same as many others.  I did not answer call as I did not recognize the number.  They left a voice mail - threatening that they had tried to contact me previously and that this would be going to the Grand Jury or Magistrate Court.  I knew this was ridiculous so I called the number. The number rang and rang and since I was on the road, I let it.  Finally, there was a connection - but no person, just noise like a calculator or key pad.  Finally a person came on the line and said "hello."  I asked "Who is this?"  Nothing but noise in the background for a while, then they came back on the line and asked if I was "Laura Smith?"  I guess they checked my number.  Anyway I asked who "she was?"  She gave me a name I could not understand.  She sounded Hispanic.  I asked who she was with and she said the Treasury.  I told her she was NOT with the Treasury.  I told her I had her recording where she left a message plus I was recording our conversation what little there was.  I told her not to ever call my number again - that it was a felony to leave this type message and that I would be reporting it.  She never said another word, but I could still hear the noise in the background.