Danny Lemieux left a link to this video in the comments. I think it deserves its own post. You might also want to share it with your friends. It’s studiously non-partisan, so one hopes it will make liberals thoughtful, rather than defensive.
Incidentally, if any of your liberal friends think the answer is just to tax the rich, Iowahawk already considered that possibility and concluded — based on actual math — that it can’t be done.
For those who panic when numbers show up, Bill Whittle made a nice video based upon the Iowahawk post: