Schneier in Reason

Good read.

Best part:

Security is designed to protect us from the dishonest minority. It’s
important to remember that. I remember being told as a child: “Never
talk to strangers.” That’s actually stupid advice. If a child is lost
or scared or alone, the smartest thing he can do is find a kindly
looking stranger to talk to. The real advice is: “Don’t answer
strangers who talk to you first.” The difference is important. In the
first case, the child selects the stranger—and the odds of him
selecting a bad person are pretty negligible. In the second case, the
stranger selects the child; that’s more dangerous. I don’t think that’s
either optimism to rightly point out that most people are honest, or
pessimism to figure out how to best secure ourselves from the dishonest
minority; it’s analytical realism.