We tried including the rest of the world, but everyone got tired of getting their butts kicked every time by the US, Cuba and Japan, so they pissed and moaned at the IOC about it until baseball was removed as an Olympic event. 
same case for softball. The US team won gold at three of the four Olympics it was played at with Japan winning in 2008.
That, and softball as well since they are linked events that you cannot have one without the other. USA had only 1 run scored on them one Olympics if I remember correctly
Yup, 2004 Olympics and it was Australia in the championship game. They out scored all teams 51-1 that year.
And during the 08 Olympics they had out scored their opponents 57-2 going into the championship game when they lost 3-1 against Japan.
Softball was the one sport I always followed since my dad is a college coach and my sister was a hall of fame pitcher.
As for the World Series, Pirates 6-4 in 7th game, opponent unknown.
