Kenyans headed to the polls Wednesday to approve a new constitution. Some feared a repeat of the tumultuous 2007 election, when more than 1,000 people died in ethnic violence. But the process was peaceful enough to allow street vendors, who stayed home three years ago, to sell cold bottles of Fanta to queued-up voters. Fanta is the second-highest selling soda in most of Africa, trailing only Coca-Cola. Europeans and Latin Americans love the stuff, too. In the United States, it’s in eighth place. Why is Fanta so much more popular abroad than in the United States?