Short answers, pulled from the story.
The National Security Archive is an American 501(c)(3) nonprofit research and archival institution located on the campus of George Washington University in Washington, D.C. It is the largest repository of declassified U.S. government documents outside the federal government, and it operates as an investigative journalism center and open-government advocate.
Scott Armstrong, a former Washington Post reporter and former staff member on the Senate Watergate Committee, founded the National Security Archive in 1985. Tom Blanton became the organization's director in 1992 and has led it since.
The National Security Archive has filed more than 70,000 Freedom of Information Act and declassification requests in its history. This activity has driven the declassification of more than 15 million pages of government documents.
The Rosemary Award is an annual prize the National Security Archive gives to the government agency with the worst open-government performance. It is named after Rose Mary Woods, President Nixon's secretary, who erased a crucial portion of a Watergate tape. Past recipients include the FBI, the CIA, the Department of Justice, and the White House.
The Archive's series of White House email lawsuits, beginning with Armstrong v. Reagan in January 1989, established that email must be treated as a government record. Cumulatively, the litigation has preserved over a billion White House emails and messages, spanning from Reagan-era IBM PROFs messages through WhatsApp messages from the Trump White House in 2020.
The Archive has obtained the CIA's "Family Jewels" list documenting the agency's own illegal activities, the NSA's watch list of 1,600 Americans including Martin Luther King Jr. and Muhammad Ali, the first official CIA confirmation of Area 51, FBI transcripts of 25 interviews with Saddam Hussein, and comprehensive Cold War collections covering the Cuban Missile Crisis and the 1983 Able Archer War Scare.