By Antonio Gilb
Over half a century after it happened, Carlos Guerrero remembers the incident in May 1945 clearly - because of what it symbolized about America's racial tensions, as well as because of what it said about how communication can solve problems.
The incident happened like this: Guerrero's 65th Infantry Division was liberating a Nazi concentration camp in Germany. But the platoon sergeant had too much to drink that day and was acting like it. He was acting rowdy, and provoked an African-American major, calling him a "nigger."