TV-watchers have no doubt noted so often that they are no longer aware of how often the interchangeable TV hosts handle anyone who tries to explain why something happened. “Are you suggesting that there was a conspiracy?” A twinkle starts in a pair of bright contact lenses. No matter what the answer, there is a wriggling of the body, followed by a tiny snort and a significant glance into the camera to show that the guest has just been delivered to the studio by flying saucer. This is one way for the public never to understand what actual conspirators—whether in the F.B.I. or on the Supreme Court or toiling for Big Tobacco—are up to.