Nearly 46 years after the March on Washington, the Attorney General says Americans remain in their "race-protected cocoons." (PHOTO CREDIT: AFP/GETTY IMAGES) From CNN's Jack Cafferty: Some tough words from the nation's first African-American attorney general. Eric Holder says the U.S. is "essentially a nation of cowards" when it comes to openly talking about race … Continue reading U.S. a “nation of cowards” when it comes to race?