[Pontiac]

So just how did this pervert know that the blocking software was not working on this one day,

I doubt that it was a one day problem. It had probably been down at least for a day before the library found the problem. Someone no doubt had to complain before they discovered the problem. I can’t imagine that they discovered the problem themselves.

This guy may have been coming in there for weeks surfing porn and watching kids.

He may have found out about it on some kiddy porn chat room.

[plan2succeed.org]

The article also says, "Librarians say this incident is a good example as to why certain sites need to be blocked." <sarcasm>The ALA will hunt down these librarians and force them into reeducation camp.</sarcasm>