I’m standing in a field near Chico, California with Aileene McConnley. She hands me one of those white air filter masks that people wear while they’re mowing the lawn. “See those?” She points at a pair of white streaks that crisscross each other in the sky. “The trails are going to be heavy today.” When I ask what exactly it is that chemtrails do she scoffs at me and hands me an already opened umbrella.