Today, Politico Magazine published a tell-all expose of the TSA by a former officer. The article ridicules airport security, depicting scanners as futile and humiliating. But if you read between the lines, you can learn useful lessons about how to craft and deploy technology that respects privacy and protects us from the worst in human nature. Surveillance technology isn’t evil. It just has to be well-designed. In fact, what we need is more of it, not less.