You can be forgiven if the current financial markets are making you want a glass of wine. Trouble is, that wine might soon cost more. While the threatened tariffs of 20 percent on all European Union wines and 30 percent on all South African wines lasted less than one day before President Donald J. Trump paused them, tariffs of 10 percent remain in place for almost all wine-exporting nations.With all the changes in trade policy since February 3, it might be easy to get confused. So here’s a