For the second time to three days, the Washington Post has an op-ed calling on us to help Haiti by reducing the number of Haitians living there. Elliott Abrams' piece, which I critiqued here on Friday, was wrongheaded in calling for substantial increases in Haitian immigration but at least it didn't reject American sovereignty. On the other hand, this most recent piece, by tranzi economist Michael Clemens at the Center for Global Development, is remarkable as an example of forthright post-Americanism. For instance: "We do know, however, why many individual Haitians are poor. For a large number, there is a...