Emmitt Smith explains why won't stop his son from playing football

As the health risks of playing football – concussions and other injuries – gain more media attention, a lot of former players are being asked whether they will let their children play the game.

NFL all-time leading rusher Emmitt Smith answered the question about his 13-year-old son, Emmitt Smith IV, in a videotaped interview with the Fort Worth Star-Telegram.