The idea that one’s security can be ensured by an external authority underlies ridiculous ideas such as gun-free zones, which end up being free-crime zones. When the innocent have access to guns and take responsibility for security, things turn out differently — crime is stopped cold. In 2002 a suspended Appalachian School of Law student with a poor academic record entered the Virginia campus and opened fire, killing the dean, a professor, and a student. The gunman also wounded three others. When the shots rang out, two students, independently of each other, headed to their cars to retrieve their handguns. Those students confronted the killer, at which point he dropped his gun and was restrained by other students. Three deaths — not 32 killed.Read the rest of this week's op-ed, "The Lesson of Virginia Tech," at The Future of Freedom Foundation website.