Yesterday, Slate posted this piece criticizing Frank Rich's New York Times column about the 9/11 photo shown here. The picture was taken by Magnum photographer Thomas Hoepker on the afternoon of 9/11. Calling the image "shocking," Rich suggested that the five New Yorkers were "relaxing" and were already "mov[ing] on" from the attacks. Slate's David Plotz disputed that characterization of the picture, arguing that the subjects had almost certainly gathered to discuss the attacks and to find solace in others' company. Rather than showing callousness, as Rich suggested, it depicted civic engagement. But since neither Rich nor Plotz knew exactly...