US First Lady Michelle Obama unveiled a Task Force action plan calling on food manufacturers to curb the marketing of unhealthy foods to children.Ms.Obama joined Domestic Policy Council Director Melody Barnes and members of the Childhood Obesity Task Force to unveil the plan, which aims to tackle the problem of childhood obesity.

Obama said: “For the first time, the nation will have goals, benchmarks, and measureable outcomes that will help us tackle the childhood obesity epidemic one chi...