NFL Partners With Oakley, Allowing Players To Wear Visors Using Their Prizm Technology
Football helmets are creating more problems than they solve
USA Football to test major changes to improve game's safety at youth level
NFL's new helmet rule is based on right intentions, player safety
NFL Players Experiment With 'Guardian Caps' to Protect Heads – NBC Connecticut
NFL's new targeting-like rule will penalize players for lowering helmet before hit - The Washington Post
How NFL's latest safety measures face resistance from players - helmet rule, concussions - ESPN
Helmet Safety Unchanged as Injury Concerns Rise - The New York Times
Smart Helmets Improve Safety in High School Football
Helmet Rule Will Change the NFL, But Only If the League Can Figure It Out, News, Scores, Highlights, Stats, and Rumors
The NFL begins a challenging task: Trying to explain its new helmet-hitting rule – The Denver Post
Experimental Helmet Aims To Fix Football