U.S. farmers are some of the most successful in history. So it’s only natural they would want to try to teach Third World farmers their methods when they reach out to those countries. More often than not, that is the wrong thing to do, according to Howard Buffett. His comments came during a media briefing following his address at the World Food Prize Symposium in Des Moines, Iowa.

(This is the second in a series. For part 1, see: Howard Buffett relentless in hunger battle)