The Sushi EconomyBy: Sasha Issenberg The highly acclaimed exploration of sushis surprising history, global business, and international allure One generation ago, sushis narrow reach ensured that sports fishermen who caught tuna in most of parts of the world sold the meat for pennies as cat food. Today, the fatty cuts of tuna known as toro are among the planets most coveted luxury foods, worth hundreds of dollars a pound and capable of losing value more quickly than