The PAP was created in 1921 when New York and New Jersey reached an agreement over the border dispute about the Port of New York. Currently called the Port Authority of New York and New Jersey, the agency operates independently of the two States, without tax revenues from either State, to meet the transportation and infrastructure needs of the region (Port District). At JFK, as at other ports of entry for New York and New Jersey, the PAP works with U.S. Customs to detect and counter smuggling and terrorism as well as other forms of crime. A unit of the PAP, the Criminal Investigations Bureau, is stationed at JFK to handle crimes at the airport, including cargo crimes, crimes against persons, ticket fraud, antiterrorism investigations, etc. Access to the airport is managed by security guards employed by the PAP. Traffic control and helicopter surveillance are also PAP responsibilities at JFK. A marine patrol provides rescue and surveillance, since the airport borders a body of water. The PAP is constantly in touch with and coordinates its activities with Federal, State, and local governments in performing security and control operations at the airport.