For all practical purposes, except for US-PR/US-Hawaii Jones Act trade, the US has no merchant marine. It would be interesting if Trump restricted cargo offload

For all practical purposes, except for US-PR/US-Hawaii Jones Act trade, the US has no merchant marine. It would be interesting if Trump restricted cargo offloading to US ships, absent a treaty with another nation. Other than the Navy, the US maritime culture has been lost. Other than the very limited Jones Act trade, we have port pilots, tugboat captains and recreational boating. That's not a recipe for "dominance at sea."