Michelle Obama's war on childhood obesity

[cnn-photo-caption image=http://i.cdn.turner.com/cnn/2010/HEALTH/01/22/teens.cholesterol/t1larg.jpg caption="Obesity rates for kids have tripled over the last three decades."]

Anthony Coley
Special to CNN

The convenience store near my house is where I first became aware of the problem.

There, an overweight girl, maybe 10 years old, had just persuaded her mother to buy her potato chips and a Slurpee.

It was 11:15 at night.

From that moment forward, I saw overweight and obese kids everywhere: At church, in Wal-Mart, at the movies. Everywhere.

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