Hugo Black,
Kotch v. Board of River Port Pilot Commissioners for Port of New Orleans…
“ The pilot's job generally requires that he go outside the harbor's entrance in a small boat to meet incoming ships, board them and direct their course from open waters to the port. The same service is performed for vessels leaving the port. Pilots are thus indispensable cogs in the transportation system of every maritime economy. Their work prevents traffic congestion and accidents which would impair navigation in and to the ports. It affects the safety of lives and cargo, the cost and time expended in port calls, and in some measure, the competitive attractiveness of particular ports. ”
