Devilish Details Thoroughness in detail is both hard and time consuming. Whether laws or trade agreements are involved, politicians often find it too tedious and inconvenient to get things right on the front end, and so they kick the detailed points on any agreement down the road. Now Canadian trade negotiators are faulting their American counterparts for seeking broader definitions in the USMCA on dairy and wine. The U.S. understandably wants its wines to be fairly marketed (equivalent retail access) not just in British Colombia, per earlier agreement, but also in Ontario and Quebec. Subnational exceptions are always problematic as are sectoral carveouts such as the one sought by the EU in a transatlantic negotiation. The Trump administra...