Tim Worstall criticizes Margot Wallstrom, an EU official, for coming “pretty close to claiming that the only thing between Europe and a re-run of the holocaust is an acceptance of the new Constitution.” Wallstrom’s remarks are no aberration. The argument that European unification has kept the peace in western Europe since World War II has been a major weapon in the unificationist arsenal. I think it’s quite weak, myself: NATO had more to do with western-European peace than the EU and its predecessors did.