Library secure for child pornography

[Janeeyre]

Traffickers use public place for privacy, and cops can't track them.

http://www.denverpost.com/headlines/ci_7494175

"Investigators routinely use the Internet to capture sex offenders, but there's still a place where online traffickers of child pornography can escape the arm of law enforcement: the public library.

Library computers have been used in Colorado and elsewhere as a distribution point for child pornography. Law enforcement officials believe that's partly because the users know the machines will be flushed clean by library officials as part of their security and privacy measures, making it impossible to track who is sending child pornography.

...Librarians say they are also sickened by child pornography but are concerned about maintaining privacy and freedom."

Hmm. So what's the solution? Anyone have ideas?