NFL lawyer Paul Clement speaks outside the U.S. Courthouse Tuesday, April 9, 2013, in Philadelphia after a hearing to determine whether the NFL faces years of litigation over concussion-related brain injuries. Thousands of former players have accused league officials of concealing what they knew about the risk of playing after a concussion. The lawsuits allege the league glorified violence as the game became a $9 billion-a-year industry. (AP Photo/Matt Rourke)

PHILADELPHIA (AP) — Lisa McHale wishes her husband had lived long enough to learn more about the links between concussions and long-term brain injuries.