Competition – everyone loves it, except when it’s competition in your particular business or profession. Then it’s dangerous and must be controlled if not eliminated. Back in August, I wrote about the North Carolina Board of Dental Examiners case, which involves the legality of efforts by that body to stop anyone who is not a licensed dentist from offering teeth whitening services. Upon digging further into the case, I learned that it has spawned a raging battle among legal groups, with four state bar associations weighing in on an amicus brief. They evidently fear that if the decision goes against...