I just got this notice too. As others have stated, it asks you to send copies of literally every form of ID you have. I'm not comfortable putting this stuff in the mail! The statement above doesn't seem to match my experience either (my federal return has already been paid so it must not have looked suspicious to the IRS), and the addresses, form names, etc. are all different on the form itself, the phone message and the website. I don't know what to do.
