What's missing here is what should be done... If your child is overweight, he or she probably needs to get more exercise. And you as the parent probably do too. So get outside and play a game of tag.
I happened to see this report and was surprised it was well balanced and seemed to downplay this "crisis" of obesity some experts talk about.
Absolutley, when I was 15 my dad sat me down and said, "son, you're getting a gut and your're only 15". He told me to try out for a team or get out there and lose some weight. He was right and I'm glad I did. I'm in better shape at 34 than I was then.