Look at the lunatics promoting private roads in that video. Governor Mitch McDaniels of Indiana, John Stossel and Randall O'Toole, a public policy analyst, who studied transportation for 20 years.
Bill Belichick learned to film signals of opponents from the former Chiefs, and Charger's coach Schottenheimer. Others like Edwards, Johnson and Cowher did too. They learned from the CHEATS and CHEATERS who still couldn't win.