The way I understand how this camera thing works - and admittedly, I am no expert. I can't even get the clock programmed on my DVD/VCR player, but... Teams film from the sideline and run a live feed from the camera straight to the coaches booth, where coaches make adjustments play to play by seeing the opposition's defensive signals and then alert the QB, who can make audibles at the line of scrimmage based on the signals. The NFL or the teams themselves could easily mitigate the whole impact of stealing signals by employing a couple of relatively simple measures. 1) Put microphones/speakers in the helmets of 2 or 3 of the play-calling defensive players so they don't have to give hand signals. 2) Put 2 or 3 coaches on the sidelines all giving signals and rotate which ones are the actual signals. You could even have the "hot" signal caller throw a couple of dummy signals in to further muddy the water for the opposition. It's not that hard. We do it in baseball all the time. We'll give the players 4 or 5 different signs from the 3rd base coaches box, and only the one that corresponds with the number of strikes is the actual signal (ie: 3-1 count, 1st sign is the hot sign; 3-2 count with 2 fouls, 4th sign is the hot sign). Meanwhile, there is a coach in the dugout throwing off fake signs and maye we've got the 1st base coach involved, too, flipping dummy signs. All you need is intelligent coaches and players.