<p>Who better than Sen. Edward M. Kennedy, Massachusetts Democrat and chairman of the Senate's subcommittee on Public Health, to convene hearings this week on the nation's "obesity epidemic"?</p>
<p>The big question: Are Americans actually that fat?</p>
<p>The Senate's hearings come on the heels of Uncle Sam raising his BMI (Body Mass Index) standards. As a result, 30 million Americans overnight went from being government-approved to "overweight" or "obese."</p>