An independent study published on Friday suggests ways to significantly improve the health, safety and welfare of workers in the global container port industry.

Over the last few decades, international trade has exploded, driven in large part by tremendous improvements in efficiency and transportation cost reductions related to the containerization of freight. However, success depends on an intricately orchestrated chain of events where the drayage fleets move containers from the shipyards to inland warehouses and from rail yards to consignees across the United States.

It's been more than two months since the United Kingdom voted to withdraw from the European Union, but the shock waves aren't close to subsiding - especially with regard to the impact on global supply chains.

KC Sealock had not taken a standardized test since college. But here he was at 39 years old, long black beard flecked with grey, sitting in front of a computer at Jacksonville, Florida's Herlong Air Field, with a proctor peering on from behind a glass door. He spent two hours clicking at multiple choice questions about latitudes and longitudes, Class C airspace regulations, wing load factors, and more - 60 in all.