"[T]here [is] reason for optimism about the health of the world's youngest," columnist Tina Rosenberg writes in the New York Times "Opinionator" blog, noting, "A massive study published last week called the Global Burden of Disease report found that in the past 20 years, the death rate of children under five has dropped in every country in the world save three -- Kuwait, Tonga and Zimbabwe." She details some of the report findings and highlights a number of "cheap global programs" that have contributed to progress over the years, including vaccines, nutritional supplements, family planning, oral rehydration salts to treat diarrhea, and bed nets, among others.