New Mexico Governor Bill Richardson, a former UN ambassador, was named as the Organization of American States' special envoy on migration in an effort to improve US-Latin American dialogue. The appointment came amid heated debate in the United States over illegal immigration, as US lawmakers consider proposals to deal with the 11.5 million undocumented workers, mostly Latin Americans, living in America. "The migration issue is key to improving relations (between Latin America and the United States," Richardson, 59, said at a news conference alongside OAS Secretary General Jose Miguel Insulza. "Dialogue and democracy are very important and I hope to...