The document discusses how the expansion of the Panama Canal will allow larger "Post-Panamax" ships to transport goods more cheaply between Asia and the East Coast of North America. This is expected to shift manufacturing and distribution hubs away from the West Coast towards new intermodal ports on the East and Gulf Coasts that can accommodate the larger ships. Specifically, 21 potential new intermodal hubs across the US are identified that could see increased economic activity and job growth as a result.