Question: What is the name of the island at the center of the area overseen by the Port Authority of New York and New Jersey?

Context paragraphs:
New Jersey Route 495: Route 495 is a 3.45 mi freeway in Hudson County, New Jersey, in the United States that connects the New Jersey Turnpike (Interstate 95, I-95) at exits 16E and 17 in Secaucus to New York State Route 495 (NY 495) inside the Lincoln Tunnel in Weehawken, providing access to Midtown Manhattan.  The road is owned and operated by the New Jersey Turnpike Authority (NJTA) between the New Jersey Turnpike and Route 3, the New Jersey Department of Transportation (NJDOT) between Route 3 and Park Avenue near the Union City–Weehawken border, and by the Port Authority of New York and New Jersey (PANYNJ) east of Park Avenue, including the helix used to descend the New Jersey Palisades to reach the entrance of the Lincoln Tunnel.  Route 495 is mostly a six-lane freeway with a reversible bus lane used during the morning rush hour.  The bus lane, which runs the entire length of the freeway, continues into the Lincoln Tunnel's center tube.

Construction of the World Trade Center: The construction of New York City's first World Trade Center complex was conceived as an urban renewal project, spearheaded by David Rockefeller, to help revitalize Lower Manhattan.  The project was developed by the Port Authority of New York and New Jersey, which hired architect Minoru Yamasaki who came up with the specific idea for twin towers.  After extensive negotiations, the New Jersey and New York state governments, which oversee the Port Authority, agreed to support the World Trade Center project, which was built at the site of Radio Row in the Lower West Side of Manhattan, New York City.  To make the agreement acceptable to New Jersey, the Port Authority agreed to take over the bankrupt Hudson & Manhattan Railroad, which brought commuters from New Jersey to the Lower Manhattan site and, upon the Port Authority's takeover of the railroad, was renamed PATH.

Statue of Liberty National Monument: The Statue of Liberty National Monument is a United States national monument located in the U.S. states of New Jersey and New York comprising Liberty Island and Ellis Island.  It includes "Liberty Enlightening the World", commonly known as the Statue of Liberty, situated on Liberty Island, and the former immigration station at Ellis Island which opened in 1892 and closed in 1954.  The monument is managed by the National Park Service as part of the National Parks of New York Harbor office.

Port Authority Bus Terminal: The Port Authority Bus Terminal (PABT) is the main gateway for interstate buses into Manhattan in New York City.  It is owned and operated by the Port Authority of New York and New Jersey (PANYNJ).  Colloquially called the Port Authority, the bus terminal is located in Midtown at 625 Eighth Avenue between 40th Street and 42nd Street, one block east of the Lincoln Tunnel and one block west of Times Square.  The PABT, opened in 1950 between 8th and 9th Avenues and 40th and 41st Streets, was built to consolidate the many different private terminals spread across Midtown Manhattan.  A second wing extending to 42nd Street was added in 1979.  It is one of three bus terminals operated by the PANYNJ, the others being the George Washington Bridge Bus Station in Upper Manhattan and the Journal Square Transportation Center in Jersey City.

World Trade Center site: The World Trade Center site, formerly known as "Ground Zero" after the September 11 attacks, is a 14.6-acre (5.9 ha) area in Lower Manhattan in New York City.  The previous World Trade Center complex stood on the site until it was destroyed in the September 11 attacks.  The Port Authority of New York and New Jersey (PANYNJ), Silverstein Properties, and the Lower Manhattan Development Corporation (LMDC) oversee the reconstruction of the site according to a master plan by Studio Daniel Libeskind.  The site is bounded by Vesey Street to the north, the West Side Highway to the west, Liberty Street to the south, and Church Street to the east.  The Port Authority owns the site's land (except for 7 World Trade Center).  Developer Larry Silverstein holds the lease to retail and office space in four of the site's buildings.

Delaware River Port Authority: The Delaware River Port Authority (DRPA), officially the "Delaware River Port Authority of Pennsylvania and New Jersey," is a bi-state agency instrumentality created by a Congressionally approved interstate compact between the governments of Pennsylvania and New Jersey.  The authority principally is charged to maintain and develop transportation links between the two states with four bridges, a ferry, and a mass transit rail line across the Delaware River.  Though the DRPA has "port" in the name, the nearby Port of Philadelphia and Port of Camden are independent.

Port Newark–Elizabeth Marine Terminal: Port Newark–Elizabeth Marine Terminal, a major component of the Port of New York and New Jersey, is the principal container ship facility for goods entering and leaving New York metropolitan area and the northeastern quadrant of North America.  Located on Newark Bay, the facility is run by the Port Authority of New York and New Jersey.  Its two components—Port Newark and the Elizabeth Marine Terminal (sometimes called "Port Newark" and "Port Elizabeth")—sit side by side within the cities of Newark and Elizabeth, New Jersey, just east of the New Jersey Turnpike and Newark Airport.

Port Authority of New York and New Jersey: The Port Authority of New York and New Jersey (PANYNJ) is a joint venture between the U.S. states of New York and New Jersey, established in 1921 through an interstate compact authorized by the United States Congress.  The Port Authority oversees much of the regional transportation infrastructure, including bridges, tunnels, airports, and seaports, within the geographical jurisdiction of the Port of New York and New Jersey.  This 1,500 mi2 port district is generally encompassed within a 25 mi radius of the Statue of Liberty National Monument.  The Port Authority is headquartered at 4 World Trade Center and is a member of the Real Estate Board of New York.

PATCO Speedline: The PATCO Speedline (also known colloquially as the PATCO High Speed Line, Lindenwold High Speed Line, or simply PATCO) is a rapid transit system operated by the Port Authority Transit Corporation, which runs between Philadelphia, Pennsylvania, and Camden County, New Jersey.  The Speedline runs underground in Philadelphia, crosses the Delaware River on the Benjamin Franklin Bridge, runs underground in Camden, then runs above ground in New Jersey until the east end of the line.  The Port Authority Transit Corporation and the Speedline are owned and operated by the Delaware River Port Authority.  The line transports over 38,000 people daily.  In 2012, ridership reached a ten-year high, with the system having carried 10,612,897 passengers, but dipped to 10,007,256 in 2014.

Kenneth Lipper: Kenneth Lipper is a prominent figure in the arts, the world of finance, and government.  He served as New York City’s Deputy Mayor under Mayor Ed Koch.  Mr. Lipper was a General Partner at Lehman Brothers and Salomon Brothers, serving as the investment banker for some of the leading public corporations in the United States and Europe.  He was Adjunct Professor at Columbia School of International Affairs in the field of international economics.  Mr. Lipper serves as a director of corporations and government agencies.  He is Chairman of Lipper & Co, an investment bank and investment management company, and also serves as Chairman of the Board of Lippmann Enterprises LLC, a cosmetics company.  In November 2010, after winning a civil class action, Lipper was awarded more than $15 million in indemnification, because as a New York State Supreme Court judge’s findings noted, "none of the investigations and claims asserted against [Lipper] had resulted in a finding that he had engaged in 'negligence, malfeasance or a violation of applicable law.'"  In 2013, Governor Andrew Cuomo nominated, and the New York State Senate confirmed, Kenneth Lipper as a member of the Board of Commissioners of the Port Authority of New York and New Jersey, the Port Authority’s governing body.  The Port Authority is a congressionally created bi-state agency which owns and operates JFK International, LaGuardia, and Newark International airports, the bridges and tunnels, PATH railroad, ports and terminals and the World Trade Center.  Mr. Lipper won an Academy Award in 1998 for producing the best feature-length documentary.  He is author of the novels Wall Street and City Hall and wrote the original screenplay for the feature film "City Hall."  Mr. Lipper was Producer of the feature films: "City Hall", "The Winter Guest" and "The Last Days," as well as Chief Technical Adviser of "Wall Street."  He is the co-founder and co-publisher of Lipper Viking Penguin, a celebrated biography series which has published 24 books in multiple languages and countries.

Supporting paragraphs: Port Authority of New York and New Jersey Statue of Liberty National Monument
Answer: Liberty Island