"There is not a Black America and a White America and a Latino America and an Asian America -- there's the United States of America." -- Barack Obama, 2004 Democratic National Convention keynote address. "theGrio.com. The African-American perspective on news. Our lives, our world, our stories. theGrio.com. Part of NBC News." -- promo for new NBC News website, August 9, 2009. So much for Barack Obama's promise of a post-racial America. NBC News apparently believes that African-Americans can be pigeonholed. In NBC's view, there exists "the" African-American perspective on news. So announced the NBC promo, aired during today's Meet The...