Robots diagnose concussions

Tackle football comes with risks like broken arms and strained muscles, but head-on collisions put football players in even more serious danger. Since concussions can be difficult to diagnose, players are sometimes allowed to carry on even though they should be off the field. And untreated head injuries have lasting consequences. To that end, some schools keep doctors on the sidelines to diagnose head injuries. But many schools don't have full-time athletic trainers and the nearest doctor is sometimes far from the football-loving schools in rural America.