Keyloggers at the Library: A Cautionary Tale
Though this article detailing the detection of several hardware keyloggers in a UK library is a couple of months old, the threat of modifications to library-owned PCs remains a relevant issue. Just like card skimmers installed on ATM machines, gas station fuel pumps and other devices, hardware keyloggers are hard to detect, and can pose a threat to PC users at any library. Moreover, they're very easy to obtain, and not that expensive.
As a precaution, take a good look at your public PCs on a regular basis, noting any anomalies. If you notice something fishy, contact SCLS.