For you short attention span liberals/progressives/daytraders, here's what it says: the average military person is more apt to have a high school diploma or GED certificate than the average civilian and has, on average, a higher IQ (AFQT correlates well with IQ; read the "Bell Curve").

 
This doesn't refute what Kerry said, and actually lends support to the idea that the military isn't where we send our "best and brightest". Those with the highest test scores and best grades hardly ever opt for military careers.