Several years ago, when my last name was different and my politics were less entrenched, I worked for a nonpartisan fact-checking site. We analyzed falsehoods in political speeches and ads and email forwards: No, there won’t be death panels. No, Sarah Palin didn’t cut funding for special education. Yes, Obama was born in America. No, he wasn’t in the video for “(Whoomp!) There It Is.” We called many of these “zombie rumors”—we would try to smack them down, but a few months later, there they would be again. Over the three years I worked there, more and more zombie rumors massed at our door. We just kept plugging away, calmly stating the facts, because that was our job, but inside our well-insulated office we were screaming. What was the point of working so tirelessly to uncover the truth when the falsehoods never died?