Actors in blackface makeup are used during coverage of the World Cup. The broadcasting company says it's just a harmless spoof, but commentators say Mexico as a whole is in denial about racism. Reporting from Mexico City — Every morning during television coverage of the World Cup, on the Mexican equivalent of the "Today" show, co-hosts chat, trade barbs and yuck it up. Behind them, actors in blackface makeup, dressed in fake animal skins and wild "Afro" wigs, gyrate, wave spears and pretend to represent a cartoonish version of South Africa. Yes, in the 21st century, blackface characters on a...