So Eduardo Saverin (Facebook cofounder) has renounced his U.S. citizenship to live in capital-gains-tax-free Singapore. He stands to save $67 million on his tax bill. That means that instead of reaping “only” $2.82 BILLION from the Facebook public offering, he stands to make $2.89 BILLION. A big difference? Sure. A significant difference? No. Eduardo, that’s a rotten way to treat the country that took you in (from Brazil), educated you (at Harvard), and gave you the opportunity to make more money than you ever dreamed possible. That kinda sucks.