Sunday, on the way to an NFL game, fans can step into one of the numerous betting parlors that dot each city block here. They can wager on that afternoon’s game (or any NFL) game, such as whether Baltimore will defeat Jacksonville by 3.5 or more points. Or they can play the over/under of 39.5. Or even wager whether or not it will snow in Glasgow on Christmas Day (3/1 yes). They can even wait until they take their seats inside Wembley Stadium, pull out their smart phones and gamble during live action. All legally. The world will not end....