Can the food and beverage industry improve American health?

The world's largest soda manufacturers have pledged to reduce the number of calories in sugary drinks by 20 percent over the next decade. Judy Woodruff interviews PepsiCo CEO Indra Nooyi and Dr. Risa Lavizzo-Mourey, president and CEO of Robert Wood Johnson, part of a coalition of companies and nonprofits working to cut calorie consumption and improve the health of Americans.