Katharine Gun

Her husband (Suat Gün) is a Turkish Kurd. As of 2020 Gun lives in Turkey and Britain. After she was acquitted in 2004, she found it difficult to find a new job. As of 2019 she has lived in Turkey with her husband and daughter for several years.

In September 2019 Ken Macdonald, the former director of public prosecutions, said the case against Gun was not dropped to stop the Attorney General’s advice on the legality of the Iraq War from being revealed. He stated that Gun would not have received a fair trial without the disclosure of information that would have compromised national security. Gavin Hood, the director of Official Secrets, expressed scepticism about Macdonald’s statement and called for the declassification of the official documents referred to by Macdonald.

In January, 2019, the film Official Secrets, recounting Gun's actions in 2003, received its premiere at the Sundance Film Festival, with Keira Knightley playing Gun. Daniel Ellsberg praised the swiftness and importance of Gun taking action, saying it was in some ways more significant than his own whistleblowing on the Vietnam War. In July 2019, in a lengthy interview on the US program Democracy Now!, Gun, Gavin Hood (the film's director), Martin Bright and Ed Vulliamy (the journalists who broke the story of the leaked memo) discussed the events that the film describes. Together with British journalist Peter Beaumont, Gun advised and consulted over the years it took to make the film and are "very happy with the result.”

The case came to court on 24 February 2004. Within half an hour, the case was dropped because the prosecution declined to offer evidence. At the time, the reasons for the Attorney-General to drop the case were murky. The day before the trial, Gun's defence team had asked the government for any records of legal advice about the lawfulness of the war that it had received during the run-up to the war. A full trial might have exposed any such documents to public scrutiny, as the defence was expected to argue that trying to stop an unlawful war of aggression overcame Gun's obligations under the Official Secrets Act. Speculation was rife in the media that the prosecution service had bowed to political pressure to drop the case so that any such documents would remain secret. However, a government spokesman said that the decision to drop the case had been made before the defence's demands had been submitted. The Guardian newspaper had reported plans to drop the case the previous week. On the day of the court hearing, Gun said, "I'm just baffled in the 21st century we as human beings are still dropping bombs on each other as a means to resolve issues." In May 2019 The Guardian stated the case was dropped "when the prosecution realised that evidence would emerge ... that even British government lawyers believed the invasion was unlawful."

Gun's regular job at GCHQ in Cheltenham was to translate Mandarin Chinese into English. While at work at GCHQ on 31 January 2003, Gun read an email from Frank Koza, the chief of staff at the "regional targets" division of the American signals intelligence agency, the National Security Agency.

On 13 November 2003, Gun was charged with an offence under section 1 of the Official Secrets Act 1989. Her case became a cause célèbre among activists, and many people stepped forward to urge the government to drop the case. Among them were Reverend Jesse Jackson, Daniel Ellsberg (the US government official who leaked the Pentagon Papers), and actor Sean Penn, who described her as "a hero of the human spirit". Gun planned to plead "not guilty", saying in her defence that she acted to prevent imminent loss of life in a war she considered illegal.

Gun received the Sam Adams Award for 2003 and was supported in her case by the UK human rights pressure group Liberty and in the US by the Institute for Public Accuracy. Following the dropping of the case, Liberty commented, "One wonders whether disclosure in this criminal trial might have been a little too embarrassing."

Gun graduated with an upper second-class degree, then took a job as an assistant English teacher with the Jet program in Hiroshima, Japan. She left teaching in 1999, and after some temporary jobs, finding it difficult to find work as a linguist, Gun applied to GCHQ in 2001, after reading a newspaper advertisement for the organisation. Gun had previously been unaware of GCHQ, later saying that "I didn't have much idea about what they did...I was going into it pretty much blind. Most people do."

After spending her childhood in Taiwan, where she attended Morrison Academy until the age of 16, Katharine returned to Britain to study for her A-levels at Moira House, a girls' boarding school in Eastbourne. Her upbringing later led her to describe herself as a "third culture kid". In 1993 she began studying Japanese and Chinese at Durham University.

Katharine Harwood moved to Taiwan in 1977 with her parents, Paul and Jan Harwood. Her father had studied Chinese at Durham University and now teaches at Tunghai University in the city of Taichung, central Taiwan. She has a younger brother who teaches in Taiwan.

Katharine Teresa Gun (née Harwood and married Gün but in the press often simplified to Gun, born 1974) is a British translator who worked for the Government Communications Headquarters (GCHQ), a British intelligence agency. In 2003, she leaked top-secret information to The Observer, concerning a request by the United States for compromising intelligence on diplomats from member states of the Security Council, who were due to vote on a second United Nations resolution on the prospective 2003 invasion of Iraq.