Page 34 - Jack Moore News Today

>> woodruff: ray suarez joins us from the 2010 world expo in shanghai. nations and. >> close to 200 nations and continents are represented here. its part trade fair, part national festival, part cultural event. >> ifill: betty ann bowser looks at how one state is tackling a health epidemic among children. >> this city has the highest rate of childhood obesity in the nation, and while people here are trying to do something about that, its a difficult problem to solve. >> woodruff: and 4...