Well, there are a couple of stories, and they range from a colleague at the law school telling me that her daughter was doing research on the Internet for a book called “Little Sisters”, and when searched for “little sisters”, they got all this pornography suddenly. It was of a nine-year daughter.
I have had a graduate student who told me about how her son was, again, just on the Internet doing some kind of research, and he came across some without searching for it, ostensibly some rather extreme sexually violent type of pornography.
There have been a few examples of that sort. People, knowing that I do research in this area, will often bring up the topic or mention it, but it's a bit of anecdotal evidence of this type.