Was there a drop in childhood obesity?

If so I think we have to credit this:

The New York Times reported a 43% drop in obesity in the 2-5 age group. A Mother Jones article suggests that the results aren't quite as definitive as they seem - the confidence intervals in the data seem rather large if this item from the comments section is accurate - but it at least seemed a reasonable excuse to post a Cookie Monster music video.

I just recently finished The Drunkard's Walk: How Randomness Rules Our Lives, which looked a lot at how people often seem to find patterns where none really exist. Felt reminded a bit of that when seeing the Washington Post piece that Mother Jones linked up.