Monday's health and safety news from the world of football: that items for player safety were on display at the American Football Coaches A sociation convention. that NFL executive vice president Troy Vincent said the league is better today because of the mistakes in handling of player conduct i sues during this season. at the greater impact of the "No More" commercials since NFL players became involved in the public service announcements. how the NFL defenders' tactic of aiming at the knees for a tackle is creeping into rugby. In the wake of two University of Oregon players suspended for failed drug tests on the eve of the first NCAA National Nick Pivetta Jersey Championship Game, at the governing body's marijuana policy, which might be the strictest in organized sports. at college athletics' approach to marijuana, which it calls inconsistent. Army defensive lineman Joe Drummond, who was playing in the Medal of Honor Bowl. a concu sion symposium in Atlanta to be hosted by the National Council on Sports Safety. that White House officials will meet with NCAA representatives as part of a pre-cursor to a "Coalition to Save College Sports." Tracey Dethlefs, who visits area schools to talk about concu sion prevention while working with the Nebraska Sports Concu sion Network. Tad Seifert, clinical a sistant profe sor of neurology at the University of Kentucky and is director of Norton Healthcare's Sports Concu sion Program, told the National Strength and Conditioning A sociation Coaches Conference last week that neck conditioning by athletes is key to avoiding concu sions. -- Bill Bradley, contributing editor Kenley Jansen Jersey