What Can Brown Do For You?

I once heard that roughly 2% of America's GDP was sold through Wal-Mart. That stat shocked me - but is nothing compared to what I read last night in "The World is Flat," by Thomas Friedman. In it, Friedman states that "On any given day, 2% of the world's GDP can be found in UPS delivery trucks of package cars." Unbelievable.