If you spend any significant time on social media, you are probably familiar with the concept of the Pentagon Pizza Tracker. It’s become popular as an ad hoc tool to predict when the next U.S. military operation might take place, given that it purports to track demand at pizza restaurants near the Pentagon. The idea is that when these pizza joints are busier than usual, then there must be more people working overtime at the Department of Defense. And if that's the case, the thinking goes, the U.