Unfit for duty?

A recent report by the U.S. military reveals that nearly 75% of Americans aged 18-24 are unfit for active duty. The principle cause is shown to be lack of physical fitness, followed by criminal records or under-education. Given the growing needs of the military in terms of recruitment, how do these findings alter what some would consider a flawed PR campaign? What should the next military PR campaign look like, and/or how should recruitment requirements be changed?