"Hello, fellow racists." That's how I greeted the gathering at the Tax Day Tea Party rally in Sacramento, Calif. Several people dropped their hoods and sheets in laughter. After a thorough search, I can report that I detected no secret handshake, security guards or minority-sniffing German shepherds to alert blacks that our presence was unwanted. An MSNBC reporter at another Tea Party rally actually asked a black man whether he "felt uncomfortable." "No," he laughed. "No, these are my people -- Americans." The man appeared far too polite to ask, "You ever felt uncomfortable working for MSNBC?" I once appeared...