OTL: Jim McMahon's memory loss

Former Chicago Bears (also Minnesota Vikings and Green Bay Packers) quarterback Jim McMahon is part of a class-action lawsuit originally filed last summer against the NFL, claiming the league failed to warn players properly about the dangers of concussions during his career. In this "Outside the Lines" feature, McMahon said he suffered three obvious concussions -- including one after an infamous late hit from the Packers' Charles Martin in 1986 -- and now suffers from short-term memory loss.