WASHINGTON - SEPTEMBER 15:  Margo G. Wootan, director of Nutrition Policy at the Center for Science in the Public Interest (CSPI), speaks during a news conference on school food nutrition September 15, 2003 in Washington, DC. The CSPI called on school administrators to replace soda and junk food sold at vending machines with healthful drinks and snacks to help combat high rates of obesity in children and teens.  (Photo by Alex Wong/Getty Images)