Container handling through the Puget Sound ports of Seattle and Tacoma fell 17% on a year earlier in January, the fourth straight month of declines and the worst monthly performance since March 2016. Loaded imports dropped 25%, underperforming an 18% slide in exports (empty container handling improved) while intra-U.S. handling to Hawaii and Alaska also declined. Traffic from China was the main culprit, with a 23% slump to 90,000 TEUs being the worst January performance in at least 10 years. The port authority has cited changes in shipping alliances as one cause for the decline. Shipment...