...and just to add to this, my objection to book-burning has nothing to do with insulting anyone. It has to do with destroying knowledge, and the deeper implications of what is going on.

As gerbick said, it is cowardice, and I believe it is about someone or someones, trying to control the emotional temperature of the weak of spirit, or stupid, and who thinks that destroying knowledge is OK, as long as it is someone else's knowledge and serves it inciteful purpose. Everyone likes a good bonfire.