Okay, so this was announced last Monday but I am still hearing from Slayer fans that they didn't relize the tour with Lamb of God, Testament, Anthrax, and Behemoth was Slayer's last tour.

I have only see Slayer once and I am by no means a super fan, I enjoy what they do.  I've just always been more of a Testament type metal guy.  I will say that if you have not seen Slayer live you should make a point on this tour.  It's a very unique experience and you are getting several other bands who are great live.

Here is the video announcement they made in case you missed it: