Reuters: Norway has threatened to challenge the European Union over plans to ban imports of furs and other products from seals. The executive European Commission last year proposed banning the import of pelts from seals that have endured excessive suffering while being killed. “In our view, the proposal cannot be justified under the WTO (World Trade Organization),” Norwegian Foreign Minister Jonas Gahr Stoere wrote in a letter to EU trade Commissioner Catherine Ashton, a copy of which …