The following is a script from “Invisible Wounds” which aired on May 5, 2013. David Martin is the correspondent. Mary Walsh, producer.
We all learned a lot in recent years about the dangers of head injuries from contact sports like football. We now know that a hard hit can cause brain damage that only becomes apparent after an athlete’s playing days are over. Football is violent, no doubt, but it’s nothing compared to war. And just as the National Football League has struggled to come to grips with head injuries so has the military – but on a much vaster scale.