The captain goes down with the ship concept has been explicitly extended in law to the pilot in command of an aircraft, in the form of laws stating that he "[has] final authority and responsibility for the operation and safety of the flight." Jurisprudence has explicitly interpreted this by analogy with the captain of a sea vessel. This is particularly relevant when an aircraft is forced to ditch in the ocean and becomes a floating vessel that will almost certainly sink. For example, following the crash of US Airways Flight 1549 into the Hudson River, pilot Chesley Sullenberger was the last person to exit the partially-submerged aircraft,
Pollution of the Hudson River the creation of Riverkeeper, a non-profit environmental organization that grew into a global umbrella organization, the Waterkeeper Alliance. Among the initial attempts to clean up the upper Hudson River was the removal in 1977–78 of of contaminated river sediments near Fort Edward. In 1984, EPA declared a stretch of the river, from Hudson Falls to New York City, to be a Superfund site requiring cleanup. This hazardous waste site is considered to be one of the largest in the nation. There have been many programs of remediation work to reduce the PCB pollution. In 1991, further PCB pollution was found