Krugman is correct in saying that we as a nation have changed for the better.
With the focus on terriorists, poor people and black men are no longer the major focus of contempt. Education is critical in order to compete in a global economy.
However, crappy schools in the inner cities and rural America leads to crime and feeds racism.
Racism is alive and well as evidence in the Clinton campaign. I will be interested in Krugman's view after the McCain camp has fun with the Clinton talking points.