In the age of social media, public shaming is making a comeback. Hundreds of years ago, townsfolk would put members of their society who violated the law or moral code into public stocks or pillories to humiliate them. Today, society attacks online, in virtual anonymity, with little fear of recrimination. And there is little the victims can do about it. The CBC's Neil Macdonald looks at the return of public shaming in a virtual world.