A technician (R) from Vietnam Posts and Telecommunication helps people during a local telecommunication, information technology and communication fair in Hanoi on July 22, 2016. / AFP PHOTO / HOANG DINH NAMHOANG DINH NAM/AFP/Getty Images

Staff and visitors use smart phones inside the booth of the local mobile phone company Vinaphone during a local telecommunication, information technology and communication fair in Hanoi on July 22, 2016. / AFP PHOTO / HOANG DINH NAMHOANG DINH NAM/AFP/Getty Images

A woman uses a laptop to check the local shares' prices at the booth of Vietnam Posts and Telecommunication during a local telecommunication, information technology and communication fair in Hanoi on July 22, 2016. / AFP PHOTO / HOANG DINH NAMHOANG DINH NAM/AFP/Getty Images

Visiting British journalist Andrew MacGregor Marshall uses a tablet to look at photos of his wife Noppawan Bunluesilp (also pictured on computer screen at R holding their young child during her arrest in Bangkok), at a hotel room in Hong Kong on July 22, 2016. Thai police on July 22 questioned Marshall's wife in Bangkok over his social media links to unflattering photos alleged to be of the kingdom's crown prince, in a country where insulting the royals carries heavy jail terms. / AFP PHOTO / ANTHONY WALLACEANTHONY WALLACE/AFP/Getty Images

A visitor tries Chinese VR SHINECON virtual reality 3D glasses during a local telecommunication, information technology and communication fair in Hanoi on July 22, 2016. / AFP PHOTO / HOANG DINH NAMHOANG DINH NAM/AFP/Getty Images

This picture shows a VHS videocassette recorder in Tokyo on July 22, 2016. The world's last videocassette recorder is set to roll off the factory line as a Japanese manufacturer ends production of the once booming home-theatre technology. Funai Electric, which says it is the world's last VCR manufacturer, pointed to a sharp decline in demand and trouble sourcing parts. / AFP PHOTO / KAZUHIRO NOGIKAZUHIRO NOGI/AFP/Getty Images

Travellers inquire about their flights at a Southwest counter at Los Angeles International Airport on July 21, 2016 in Los Angeles, California. A Southwest Airlines computer failure has grounded flights nationwide since July 20 leaving passengers stranded or waiting for long delays as some 700 Southwest flights were cancelled nationally with more than 300 flights canceled by 8am today, according to the airline, with the number rising to about 450 by mid-afternoon. / AFP PHOTO / Frederic J. BROWNFREDERIC J. BROWN/AFP/Getty Images

Travellers wait in line to check-in at a Southwest Airlines counter at Los Angeles International Airport on July 21, 2016 in Los Angeles, California. A Southwest Airlines computer failure has grounded flights nationwide since July 20 leaving passengers stranded or waiting for long delays as some 700 Southwest flights were cancelled nationally with more than 300 flights canceled by 8am today, according to the airline, with the number rising to about 450 by mid-afternoon. / AFP PHOTO / Frederic J. BROWNFREDERIC J. BROWN/AFP/Getty Images