A security guard is reflected on a screen showing an image from a thermographic device of a person before entering a shopping mall in Bangkok, Thailand, February 4, 2020. REUTERS/Athit Perawongmetha   

An image is seen on a thermographic device checking the temperature of people before entering a shopping mall in Bangkok, Thailand, February 4,2020. REUTERS/Athit Perawongmetha   

Hands are seen on a keyboard in front of a displayed cyber code in this picture illustration taken October 4, 2018. REUTERS/Dado Ruvic/Illutration 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, December 22, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, December 21, 2016. REUTERS/Staff/Remote 

A recorded 3D kung fu staff form is seen on a computer screen, as part of the Hong Kong Martial Arts Living Archive at City University in Hong Kong, China December 6, 2016. Picture taken December 6, 2016. REUTERS/Bobby Yip 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, December 20, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, December 15, 2016. REUTERS/Staff/Remote 

Soccer Football - Club America v Real Madrid - FIFA Club World Cup Semi Final - International Stadium Yokohama - 15/12/16 General view of a part of the video refereeing system before the match Reuters / Kim Kyung-Hoon Livepic 

Soccer Football - Club America v Real Madrid - FIFA Club World Cup Semi Final - International Stadium Yokohama - 15/12/16 General view of a part of the video refereeing system before the match Reuters / Kim Kyung-Hoon Livepic 

Soccer Football - Club America v Real Madrid - FIFA Club World Cup Semi Final - International Stadium Yokohama - 15/12/16 General view of a part of the video refereeing system before the match Reuters / Kim Kyung-Hoon Livepic 

Soccer Football - Club America v Real Madrid - FIFA Club World Cup Semi Final - International Stadium Yokohama - 15/12/16 General view of a part of the video refereeing system before the match Reuters / Kim Kyung-Hoon Livepic 

Soccer Football - Club America v Real Madrid - FIFA Club World Cup Semi Final - International Stadium Yokohama - 15/12/16 General view of a part of the video refereeing system before the match Reuters / Kim Kyung-Hoon Livepic 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, December 14, 2016. REUTERS/Staff/Remote 

Host Arnold Schwarzenegger walks on stage to participate in a panel for "The New Celebrity Apprentice" in Universal City, California, December 9, 2016. REUTERS/Danny Moloshok 

Host Arnold Schwarzenegger walks on stage to participate in a panel for "The New Celebrity Apprentice" in Universal City, California, December 9, 2016. REUTERS/Danny Moloshok TPX IMAGES OF THE DAY 

Britain's Prince Harry takes part in a charity trading day at ICAP with Edward Bird on the Interest Rate Swaps Desk in support of his charity Sentebale, in London, December 7, 2016. REUTERS/Geoff Pugh/Pool 

Britain's Prince Harry takes part in a charity trading day at ICAP with Edward Bird on the Interest Rate Swaps Desk in support of his charity Sentebale, in London, December 7, 2016. REUTERS/Geoff Pugh/Pool 

Britain's Prince Harry takes part in a charity trading day at ICAP with Kate Arnold and Samantha Bennett on the EBS Direct Desk in support of his charity Sentebale, in London, December 7, 2016. REUTERS/Geoff Pugh/Pool 

Britain's Prince Harry takes part in a charity trading day at ICAP with Kate Arnold and Samantha Bennett on the EBS Direct Desk in support of his charity Sentebale, in London, December 7, 2016. REUTERS/Geoff Pugh/Pool 

Britain's Prince Harry takes part in a charity trading day at ICAP with Edward Bird on the Interest Rate Swaps Desk in support of his charity Sentebale, in London, December 7, 2016. REUTERS/Geoff Pugh/Pool 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, December 5, 2016. REUTERS/Staff/Remote 

Russian President Vladimir Putin is seen on a screen during his annual state of the nation address at the Kremlin in Moscow, Russia, December 1, 2016. REUTERS/Maxim Shemetov 

Russian President Vladimir Putin is seen on a screen during his annual state of the nation address at the Kremlin in Moscow, Russia, December 1, 2016. REUTERS/Maxim Shemetov 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, November 29, 2016. REUTERS/Staff/Remote 

Italy's Prime Minister Matteo Renzi (R) speaks as he is flanked by Italy's Finance Minister Pier Carlo Padoan (L) during a news conference at the Chigi Palace in Rome November 28, 2016. REUTERS/Tony Gentile 

Italy's Prime Minister Matteo Renzi speaks during a news conference at the Chigi Palace in Rome November 28, 2016 . REUTERS/Tony Gentile 

French President Francois Hollande (R) flanked by French Labor Minister Myriam El Khomri (2ndR) look on a computer screen as an online teacher speaks, during a visit to Open Classrooms, in Paris, France, November 24, 2016. REUTERS/Francois Mori/Pool 

French President Francois Hollande (R) flanked by French Labor Minister Myriam El Khomri (2ndR) look on a computer screen as an online teacher speaks, during a visit to Open Classrooms, in Paris, France, November 24, 2016. REUTERS/Francois Mori/Pool 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, November 24, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, November 16, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, November 10, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, November 9, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, November 9, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, November 9, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, early November 9, 2016. REUTERS/Staff/Remote 

Production monitors and switchboards are illuminated in the press pen before Melania Trump, wife to the Republican presidential nominee, holds an event at Main Line Sports in Berwyn, Pennsylvania, U.S. November 3, 2016. REUTERS/Mark Makela 

U.S. Democratic presidential nominee Hillary Clinton's speech is broadcast in a room adjacent to her campaign rally in Sanford, Florida, U.S. November 1, 2016. REUTERS/Brian Snyder

Visitors play a video game "Made in France" at the Paris Games Week, a trade fair for video games in Paris, France, October 26, 2016. REUTERS/Benoit Tessier 

Visitors play the video game Final Fantasy XV at the Paris Games Week, a trade fair for video games in Paris, France, October 26, 2016. REUTERS/Benoit Tessier 

Visitors play a video game at the Paris Games Week, a trade fair for video games in Paris, France, October 26, 2016. REUTERS/Benoit Tessier 

Visitors play Final Fantasy XIV : Heavensward at the Paris Games Week, a trade fair for video games in Paris, France, October 26, 2016. REUTERS/Benoit Tessier 

A visitor plays Paragon, a video game published by Epic Games at the Paris Games Week, a trade fair for video games in Paris, France, October 26, 2016. REUTERS/Benoit Tessier 

Visitors play games on PlayStation 4 (PS4) at the Paris Games Week, a trade fair for video games in Paris, France, October 26, 2016. REUTERS/Benoit Tessier 

Visitors play Final Fantasy XV, a video game published by Square-Enix at the Paris Games Week, a trade fair for video games in Paris, France, October 26, 2016. REUTERS/Benoit Tessier 

Panos Panay, Corporate Vice President for Surface Computing demonstrates the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, U.S.,October 26, 2016. REUTERS/Lucas Jackson

Panos Panay, Corporate Vice President for Surface Computing demonstrates the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, U.S.,October 26, 2016. REUTERS/Lucas Jackson

Panos Panay, Corporate Vice President for Surface Computing holds the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, October 26, 2016. REUTERS/Lucas Jackson TPX IMAGES OF THE DAY

Panos Panay, Corporate Vice President for Surface Computing demonstrates the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, October 26, 2016. REUTERS/Lucas Jackson 

Panos Panay, Corporate Vice President for Surface Computing demonstrates the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, October 26, 2016. REUTERS/Lucas Jackson 

Panos Panay, Corporate Vice President for Surface Computing demonstrates the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, October 26, 2016. REUTERS/Lucas Jackson 

Panos Panay, Corporate Vice President for Surface Computing demonstrates the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, October 26, 2016. REUTERS/Lucas Jackson 

Panos Panay, Corporate Vice President for Surface Computing demonstrates the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, October 26, 2016. REUTERS/Lucas Jackson 

Panos Panay, Corporate Vice President for Surface Computing holds the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, October 26, 2016. REUTERS/Lucas Jackson 

Panos Panay, Corporate Vice President for Surface Computing holds the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, October 26, 2016. REUTERS/Lucas Jackson 

Panos Panay, Corporate Vice President for Surface Computing holds the new Microsoft Surface Studio computer at a live event in the Manhattan borough of New York City, October 26, 2016. REUTERS/Lucas Jackson 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, October 19, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, October 6, 2016. REUTERS/Staff/Remote 

Traders work at their desks in front of the German share price index, DAX board, at the stock exchange in Frankfurt, Germany, October 4, 2016. REUTERS/Staff/Remote 

A screen displays the speech of Britain's Chancellor of the Exchequer Philip Hammond during the Conservative Party conference in Birmingham, Britain October 3, 2016. REUTERS/Toby Melville