Why does the idea of cultural property have so many advocates? “It seems to establish a bulwark against the plunder of antiquities.” And yet how quickly it’s turned into a way of looting premodern artifacts from Western owners whose claim of title is stronger than that of foreign governments or indigenous/Indian tribes. “But if cultural property really did exist, the Enlightenment museum would be an example of it: an institution that evolved, almost uniquely, out of Western civilization. And the cultural property movement could be seen as a persistent attempt to undermine it. And take illicit possession.” (Edward Rothstein, “Antiquities, the World Is Your Homeland”, New York Times, May 27).