Security has become big business in our world. Burglar and smoke alarms are wired directly from private homes to police and fire stations. Automobiles give forth major noises in the parking lots of shopping malls because some owner has inadvertently pushed the wrong button on a key pad. High school students walk through metal detectors to enter their school buildings. Even business phones and credit cards are "protected" by a user's password or "PIN" number. So pervasive is the concern for security that a whole new mentality animates parents who tour college campuses with their teenagers, seeking to make a choice among various institutions. No longer do such parents ask questions about the faculty, living accommodations, library, or dining hall. The questions have changed during the past d …