02:44 - Source: CNN
Hoffman Dr. Salerno on obesity

The numbers are startling: 34% of Americans are obese – not just overweight, but obese. That number is expected to grow to 42% by the year 2030.

A new book and documentary are working to issue a wake up call. It’s called “Weight of the Nation” with the four-part series airing tonight on HBO.

This morning, HBO Documentary Films vice president John Hoffman and the Institute of Medidine’s Dr. Judity Salerno explain why obesity is not a ‘failure of personal will’ as some believe, but a crisis where everyone has to take responsibility to solve it.

Learn more about “Weight of the Nation” here.