Anyone who has been confronted by a touch-screen computer terminal covered with sticky fingerprints is likely to abominate the things, but according to the Wall Street Journal, they are beginning to catch on at museums and exhibits for the fact that they enable people unfamiliar with computers to pursue the subject to whatever level they choose – but it’s important to create a sufficient atmosphere of privacy around the things that if the user doesn’t complete the exercise successfully, he doesn’t feel that all about are laughing at him.