About: http://webisa.webdatacommons.org/453377121

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Surveillance is the mission for the Northeast Air Defense Sector ( NEADS), responsible for defending a half million square miles of air space including New York City, Washington D.C., Chicago and other majors cities.
http://www.w3.org/ns/prov#wasQuotedFrom	strategic-air-command.com