Read the passage from Sugar Changed the World.We all crave sweetness, now more than ever since there are so many ways to satisfy that need. And there are still sugar plantations where the work is brutal. In places like the Dominican Republic (Haiti's island neighbor), some sugar work is not very different from what it was for Marina's Indian ancestors in British Guiana: hard, poorly paid labor by people who are often mistreated. But for most of us, chemists have more to say about how we satisfy that taste than do overseers. When sugar is in the headlines, critics speak about how much of it we eat, not who picked the crop. Doctors warn that young people are gaining too much weight from eating sugary snacks; parents learn that kids who drink too many sweet sodas can cycle between manic sugar "highs" and grinding sugar "crashes." No one worries about where the sweetness comes from. Our diet was transformed by the Age of Sugar, but that era is over.