Great article Thomas, as usual.
There is another excellent book out on the same subject:
"No Matter What.....They'll Call This Book Racist - how our fear of talking honestly about race hurts us all." by Harry Stein.
Very well written. I highly recommend it.
Also, you might like this, an alternative to the race card. (the decal was made by my wife) http://punditpete.blogspot.com/2012/01/in-honor-of-dr-king-lets-bury-race-card.html