Punishing the Innocent Because of One Perv

Not all libraries are good guys. The Naperville Public Library decided not to fingerprint patrons because of incompetence, not privacy concerns.

A Chicago-area library system has dropped a plan to use fingerprint scans to monitor computer use, blaming incompatible software.
Administrators at the Naperville Public Library told the Chicago Tribune the decision had nothing to do with criticism that fingerprint scans would be an invasion of privacy.
The three-branch system decided that computers needed to be watched more closely after an incident in which a man who had been looking at pornography fondled himself in front of young patrons.

Perhaps they need to do retinal scans of kids checking out books, too. After all, it is probable that at least one person reading Clifford, the Big Red Dog this year will commit some serious felony a couple of decades down the road.