The Trump administration may be considering a Jones Act exemption for Puerto Rico. That would allow non-American shippers to incorporate U.S. mainland-to-Puerto Rico routes in their global shipping services. It would come as a response to the disruptions caused by last fall’s storms. Imports to Puerto Rico by sea from outside the U.S. climbed 28% in the past three months to February 28, though that reflects the post-hurricane reconstruction process. Over the past three years growth was just 2% annually as the economy struggled. The leading global container-lines that service Puerto Rico ...