Footballs are shown with Jacksonville Jaguars helmets on November 26, 2006. (Getty Images/File)
(CNN) – Across the country, thousands of high school kids are about to strap on the shoulder pads as they get ready for a new season on the gridiron. College students and professionals are right behind them. The most critical piece of football gear is the helmet, of course. And the NFL just released the results of safety tests on 16 helmet models. Three of the models tested were rated "top performers." Neurologist Dr. Robert Cantu is a senior adviser to the NFL's committee on head injuries. Dr. Cantu is concerned that making that information public gives the wrong impression. He joined us on Tuesday's American Morning to discuss whether football helmets protect enough. Watch 