"[Y]et these rupees haunted his mind, because he had been tricked about them, and allowed them to escape overseas, like so much of the wealth of India." -- A Passage to India
Those in and around St. Louis later this week might stop in at the Washington University School of Law, which is hosting the Imperialism, Art & Restitution Conference on March 25-26. I favor the colonized in preference to the imperialists, although the issue of Native American sacred sites is more complicated.
If the Elgin/ Parthenon marbles could be removed from Greece, then they can be returned, and ought to be; surely no one will argue that Greece, a fellow member with Britain in the European Union, host of the 2004 Olympics and my planned vacation spot, is unable to care for its own cultural legacy. Land, on the other hand, is not a movable good, and to tear down what has been built upon it is far more difficult than transferring stone and metal from one museum to another.