An op-ed piece by law professor Julia Qin and law student Katherine Razdolsky calls for imposing a duty on the import of foreign garbage as the best way to thwart the import of trash from Canada to Michigan . "Under the liberal trade rules of the WTO, customs tariffs remain the only legitimate means of restricting imports," they write. They further contend that banning the import of trash by making laws would violate U.S. treaty commitments and would most likely be challenged successfully by Canada in the courts. Photos of Qin and Razdolsky accompanies the piece.