Additional safety precautions for athletes of all ages were discussed during the Youth Sports Safety Summit Tuesday morning. Professionals, including athletic trainers, orthopaedic surgeons, parents, students, physicians, professors and state legislators all presented possible solutions to help decrease the risk of catastrophic athletic injuries and illness among athletes.    Last year, Tommy Mallon, a student at Santa Fe Christian High School in San Diego, broke his neck during a lacrosse game.  His school athletic trainer, Riki Kirchhoff, saved his life by following proper procedure.  It turned out Mallon had a fractured neck and without the help of an athletic trainer, he would have d