It seems unreal: a conspiracy that connected online retailer Wayfair to organized child sex trafficking. But so many believed it that the National Human Trafficking Hotline was overwhelmed with calls. Where do these ideas originate? And how do they affect our society? Filmmaker Michael Kirk talks to host Krys Boyd about how hoaxes and conspiracies are perpetuated and the battle between truth and lies. His Frontline documentary “The United States of Conspiracy” airs tonight on PBS stations.