The essay encourages us to use encrypted services in order to prevent traffic analysis. I have no issue with the overall goal. I have only a nit to pick, with the quote "It takes the teen’s Web history into account when his family applies for coverage."<p>That specific scenario doesn't make economic sense. There's too much variability for the insurance company to make a good decision. Consider that a health teacher may assign students to research different common ailments, as part of a lesson to understand the available tools; a science teacher may bring up the story of H. pylori as a digestive disorder which was misunderstood for a very long time, and the student wants to learn more; the teenager may be helping a stressed out friend; the teenager might be interested in going into medicine and researches common diseases; and so on.