That's appalling, we're living in free countries and should be able to make the choice of what we're reading ourselves, not have someone else make the choice for us. I could walk into my local branch of Waterstones and buy books off the shelf that have things like rape, incest, etc, despite the fact that they are illegal so why are they being so heavy handed and being allowed to get away with it. Cousins marrying is legal here too, one of my cousins married his first cousin!