FROM CNN's Jack Cafferty: With the U.S. fighting two wars and threats like a potentially nuclear-armed Iran on the horizon, there is a very scary truth that needs to be addressed. [cnn-photo-caption image=http://i2.cdn.turner.com/cnn/2010/images/04/21/art.cafeteria.jpg caption=""] Three-fourths of the young people between the ages of 17 and 24 are unfit for military service. It's a national disgrace. … Continue reading Three-fourths of youth unfit for military service