Britain's Queen Elizabeth II looks at artifacts relating to MI5 D-Day operations with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II looks at artifacts relating to MI5 D-Day operations with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II looks at artifacts relating to MI5 D-Day operations with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II looks at artifacts relating to MI5 D-Day operations with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II stands with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II stands with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II walks with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II walks with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II walks with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II walks with Director General Andrew Parker during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II speaks during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II speaks during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II talks with MI5 officers during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II talks with MI5 officers during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II talks with MI5 officers during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II talks with MI5 officers during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II visits the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II visits the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II visits the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II visits the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II visits the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II visits the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II talks with MI5 officers during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II talks with MI5 officers during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II talks with MI5 officers during a visit to the headquarters of MI5, which is the United Kingdom's domestic counter-intelligence and security agency, at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

Britain's Queen Elizabeth II talks with MI5 officers during a visit to the headquarters of MI5 at Thames House in London, Britain February 25, 2020. Victoria Jones/PA Wire/Pool via REUTERS

A journalist stands next to a poster of Xiaomi Mi MIX Alpha surround display 5G concept smartphone at a product launch event in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi Mi MIX Alpha surround display 5G concept smartphones are displayed at a product launch event in Beijing, China September 24, 2019. REUTERS/Jason Lee

A Xiaomi Mi MIX Alpha surround display 5G concept smartphone is displayed at a product launch event in Beijing, China September 24, 2019. REUTERS/Jason Lee TPX IMAGES OF THE DAY

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi MIX Alpha surround display 5G concept smartphone in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi9 Pro 5G in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi9 Pro 5G in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun (2nd R) looks at his mobile phone as he waits to attend a product launch event of Xiaomi Mi9 Pro 5G and Mi MIX Alpha concept smartphone in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi9 Pro 5G in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun (L) looks at his mobile phone as he waits to attend a product launch event of Xiaomi Mi9 Pro 5G and Mi MIX Alpha concept smartphone in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi9 Pro 5G in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi9 Pro 5G in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi9 Pro 5G in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun prepares to attend a product launch event of Xiaomi Mi9 Pro 5G and Mi MIX Alpha concept smartphone in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi MIX Alpha surround display 5G concept smartphone in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi9 Pro 5G in Beijing, China September 24, 2019. REUTERS/Jason Lee

Xiaomi founder and CEO Lei Jun attends a product launch event of Xiaomi Mi MIX Alpha surround display 5G concept smartphone in Beijing, China September 24, 2019. REUTERS/Jason Lee

The MI6 Q Brand specifications "gadget box" on the James Bond 1965 Aston Martin DB5 coupe is displayed at Sotheby's auction house in New York, U.S., July 26, 2019. REUTERS/Brendan McDermid

A look at where BoE officials stand on interest rate hike. Interactive graphic updates after each meeting embed code and instructions: https://reut.rs/2Mi5tSr

An employee uses a Xiaomi MI Mix 3 5G smartphone at a Sunrise telecommunications shop in Opfikon, Switzerland June 21, 2019. REUTERS/Arnd Wiegmann

Members of Nepalese army hang on to the MI-17V-5 Helicopter during their rehearsal for the upcoming Army Day celebration at Tundhikhel in Kathmandu, Nepal February 25, 2019. REUTERS/Navesh Chitrakar

Members of Nepalese army hang on to the MI-17V-5 Helicopter during their rehearsal for the upcoming Army Day celebration at Tundhikhel in Kathmandu, Nepal February 25, 2019. REUTERS/Navesh Chitrakar

Rep. Andy Levin (D-MI) playfully dons a white scarf worn by one of the Democratic female members of Congress as he stands between Rep. Dean Phillips (D-MN) and Rep. Donna Shalala (D-FL) before U.S. President Donald Trump delivered his second State of the Union address to a joint session of Congress at the U.S. Capitol in Washington, U.S. February 5, 2019. REUTERS/Jonathan Ernst

A MiG-21 jet fighter manufactured by the Soviet-Union and used during Vietnam War, is seen exhibited at the Vietnam Military History Museum in Hanoi, Vietnam November 5, 2018. Picture taken November 5, 2018. REUTERS/Kham

FEBRUARY 5, 2019 - WASHINGTON, DC: Representatives Madeleine Dean, D-PA, and Rashida Tlaib, D-MI, during the State of the Union address at the Capitol in Washington, DC on February 5, 2019. Doug Mills/Pool via REUTERS

Rep. Ilhan Omar (D-MN) (L) and Rep. Rashida Tlaib (D-MI) (C) take selfies with other female members of the House of Representatives as Rep. Adam Schiff (R) looks on as they await the start of U.S. President Donald Trump's second State of the Union address to a joint session of the U.S. Congress in the House Chamber of the U.S. Capitol on Capitol Hill in Washington, U.S. February 5, 2019. REUTERS/Jonathan Ernst

Rep. Ilhan Omar (D-MN) (L) and Rep. Rashida Tlaib (D-MI) (C) take selfies with other female members of the House of Representatives as Rep. Adam Schiff (R) looks on as they await the start of U.S. President Donald Trump's second State of the Union address to a joint session of the U.S. Congress in the House Chamber of the U.S. Capitol on Capitol Hill in Washington, U.S. February 5, 2019. REUTERS/Jonathan Ernst

Director General of MI5 Andrew Parker delivers a speech in central London, on the security threat facing Britain October 17, 2017. REUTERS/Stefan Rousseau/Pool

Director General of MI5 Andrew Parker looks on, as he delivers a speech in central London, on the security threat facing Britain October 17, 2017. REUTERS/Stefan Rousseau/Pool

Director General of MI5 Andrew Parker looks on, as he delivers a speech in central London, on the security threat facing Britain October 17, 2017. REUTERS/Stefan Rousseau/Pool

Director General of MI5 Andrew Parker delivers a speech in central London, on the security threat facing Britain October 17, 2017. REUTERS/Stefan Rousseau/Pool

Director General of MI5 Andrew Parker looks on, as he delivers a speech in central London, on the security threat facing Britain October 17, 2017. REUTERS/Stefan Rousseau/Pool

Director General of MI5 Andrew Parker delivers a speech in central London, on the security threat facing Britain October 17, 2017. REUTERS/Stefan Rousseau/Pool