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 

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 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, during 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 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 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 

Mikoyan MiG-29 jet fighters fire missiles during the Keys to the Sky competition at the International Army Games 2017 at the Ashuluk shooting range outside Astrakhan, Russia August 5, 2017. REUTERS/Maxim Shemetov 

Mikoyan MiG-29 SMT jet fighters releases flares during the Keys to the Sky competition at the International Army Games 2017 at the Ashuluk shooting range outside Astrakhan, Russia August 5, 2017. REUTERS/Maxim Shemetov 

Mikoyan MiG-29 jet fighters fire missiles during the Keys to the Sky competition at the International Army Games 2017 at the Ashuluk shooting range outside Astrakhan, Russia August 5, 2017. REUTERS/Maxim Shemetov 

The MI5 building is illuminated to mark the Pride in London Parade in London, Britain July 8, 2017. REUTERS/Neil Hall 

The MI5 building is illuminated to mark the Pride in London Parade in London, Britain July 8, 2017. REUTERS/Neil Hall 

The MI5 building is illuminated to mark the Pride in London Parade in London, Britain July 8, 2017. REUTERS/Neil Hall 

The MI5 building is see through a sculpture as it is illuminated to mark the Pride in London Parade in London, Britain July 8, 2017. REUTERS/Neil Hall 

The MI5 building is reflected in a sculpture as it is illuminated to mark the Pride in London Parade in London, Britain July 8, 2017. REUTERS/Neil Hall 

Mrs. Ryie Yoshizawa and a class of female students sit at a table looking at fashion magazines and patterns. The students are: Satoko Oka, Chizuko Karnii, Takako Nakanishi, Kikiyo Yamasuchi, Masako Kimochita, Mitsugo Fugi, Mie Mio, Chiye Kawase, and Miyeko Hoshozike, at the Manzanar War Relocation Center in California, in this 1943 handout photo. February 19, 2017 marks the 75th anniversary of FDR signing executive order 9066, authorizing the internment of Japanese Americans during the Second World War. Courtesy Ansel Adams/Library of Congress, Prints and Photographs Division, LC-A35-4-M-10/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. - RTSZ5MI 

A Mil Mi-28N Night Hunter military helicopter performs during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

A Mil Mi-26 heavy transport helicopter and an Ilyushin Il-76 military transport aircraft perform during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

A Mil Mi-26 heavy transport helicopter performs during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

A Mil Mi-26 heavy transport helicopter performs during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

A Mil Mi-28N Night Hunter military helicopter performs during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

Mil Mi-28N Night Hunter military helicopters of the Berkuty (Golden Eagles) aerobatic team perform during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

Mikoyan MiG-29 jet fighters of the Strizhi (Swifts) aerobatic team fly in formation during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

A Mil Mi-28N Night Hunter military helicopter performs during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

A Mil Mi-28N Night Hunter military helicopter performs during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

Mikoyan MiG-29 jet fighters of the Strizhi (Swifts) aerobatic team fly in formation during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov 

Mikoyan MiG-29 jet fighters of the Strizhi (Swifts) aerobatic team fly in formation during the International Army Games 2016, in Dubrovichi outside Ryazan, Russia, August 5, 2016. REUTERS/Maxim Shemetov TPX IMAGES OF THE DAY

A Russian Mi-26 heavy transport helicopter and Mi-8 military helicopters are seen flying in formation through a glass roof of GUM department store during a rehearsal for the Victory Day parade to mark the 71st anniversary of the victory over Nazi Germany in World War Two, in Red Square in Moscow, Russia, May 5, 2016. REUTERS/Grigory Dukor 

Russian Mi-8 military helicopters are seen flying in formation through a glass roof of GUM department store during a rehearsal for the Victory Day parade to mark the 71st anniversary of the victory over Nazi Germany in World War Two, in Red Square in Moscow, Russia, May 5, 2016. REUTERS/Grigory Dukor 

Russian Mi-35 military helicopters are seen flying in formation through a glass roof of GUM department store during a rehearsal for the Victory Day parade to mark the 71st anniversary of the victory over Nazi Germany in World War Two, in Red Square in Moscow, Russia, May 5, 2016. REUTERS/Grigory Dukor 

A man holds a Xiaomi phone Mi 5 during the Global Mobile Internet Conference (GMIC) 2016 in Beijing, China, April 28, 2016. REUTERS/Jason Lee 

Lei Jun, founder and CEO of China's mobile company Xiaomi, speaks at a launch ceremony of Xiaomi Mi 5, in Beijing, China, February 24, 2016. The Chinese characters on the screen read, "The return of the king". REUTERS/Jason Lee

Lei Jun, founder and CEO of China's mobile company Xiaomi, speaks at a launch ceremony of Xiaomi Mi 5, in Beijing, China, February 24, 2016. REUTERS/Jason Lee

Lei Jun, founder and CEO of China's mobile company Xiaomi, speaks at a launch ceremony of Xiaomi Mi 5, in Beijing, China, February 24, 2016. REUTERS/Jason Lee

Lei Jun, founder and CEO of China's mobile company Xiaomi, introduces Xiaomi Mi 5's Near Field Communication (NFC) for payment function at its launch ceremony, in Beijing, China, February 24, 2016. REUTERS/Jason Lee

Lei Jun, founder and CEO of China's mobile company Xiaomi, speaks at a launch ceremony of Xiaomi Mi 5, in Beijing, China, February 24, 2016. REUTERS/Jason Lee

Lei Jun, founder and CEO of China's mobile company Xiaomi, speaks at a launch ceremony of Xiaomi Mi 5, in Beijing, China, February 24, 2016. REUTERS/Jason Lee

Lei Jun, founder and CEO of China's mobile company Xiaomi, speaks at a launch ceremony of Xiaomi Mi 5, in Beijing, China, February 24, 2016. REUTERS/Jason Lee

Lei Jun, founder and CEO of China's mobile company Xiaomi, displays Xiaomi Mi 5 at its launch ceremony, in Beijing, China, February 24, 2016. REUTERS/Jason Lee