I don't think there's any other venue that contributes to peace throughout the world more than these. It's when the Olympics or the World Cup are on television that people set aside their daily routine of problems and focus on their passion; sport. And when that happens, people communicate, and that contributes to peace throughout the world. In the past, governments were able to motivate their populations to go to war by spreading propoganda about the other side. Prior to WWII in Nazi Germany, jews were depicted as large rodents... rats, basically. British posters showed German soldiers raping British women and killing British babies. But, when people of different ethnic backgrounds actually talk face to face with each other, they realize they're all the same. And, nothing gets people of different ethnic backgrounds talking to each other better than the Olympics or the World Cup. The new immigrant from Poland will talk to the Portugese waiter in broken English about the match between Argentina and Germany, and both will realize they're equally passionate about soccer and they've each found a new friend. It's those tiny relationships blossoming everywhere right now that helps people all over the world realize that everyone else is just the same as them, and that contributes to world peace.