At a time when Americans throughout the country are frustrated by the failure of public schools to teach their children, Mexico is increasing its efforts to help struggling school systems deal with immigrant children who speak Spanish. "We are grateful that the Mexican Consul and the Mexican government have taken such an interest in helping Denver Public Schools and its students," Jerry Wartgow, Superintendent of the Denver Public Schools, said when Mexico donated 30,000 Spanish-language textbooks for elementary students. "This donation is just one example of how we can work together to improve the lives of all children through education."...