Well, I was interested in what the Canadian history was in this field, and managed to find a website about Canada's history with book-banning:

http://www.efc.ca/pages/chronicle/chronicle.html

in case anyone is interested what goes on in other countries.


EDIT: Hey, CK, here's a bit from that site about NZ: Metro Toronto police bust an independent comic called Omaha, The Cat Dancer, which was being sold in a local comic store and features cartoon characters depicted as humanoid cats, dogs and other animals. They allege it glorifies bestiality. The same comic was examined in New Zealand and given the equivalent of a G rating for its responsible depiction of sexuality.