Katie Couric's Notebook: Military Obesity

Add to that men and women ineligible because of a limited education, criminal records, or illegal drug use - and the report concludes almost three-quarters of potential recruits are unable to enlist. Military leaders call that a threat to national security.

The obstacle facing the Pentagon is a symptom of a much larger disease.

This war may not be in Afghanistan or Iraq but the battle of the bulge in this country is just as dangerous and costly. Fitness to serve is one thing, but in or out of uniform, Americans need to focus on fitness to live long and health lives.

That's a page from my notebook.

I'm Katie Couric, CBS News.