All Tokyo subway cars to have surveillance cameras installed ahead of 2020 Games | The Japan Times

Surveillance cameras will be installed on each of the roughly 3,800 subway cars in Tokyo, their operators said Tuesday, part of an effort to improve public safety ahead of the 2020 Tokyo Olympics and

https://www.japantimes.co.jp/news/2017/03/15/national/tokyo-subway-cars-surveillance-cameras-installed-ahead-2020-games/#.XWodNegzZgY

Tokyo to Install 22,000 Security Cameras on Metro in Advance of 2020 Olympics -- Security Today

Tokyo to Install 22,000 Security Cameras on Metro in Advance of 2020 Olympics East Japan Railway Co., or JR East, plans to install about 22,000 security cameras as part of efforts to increase

https://securitytoday.com/articles/2019/03/12/tokyo-to-install-22000-security-cameras-on-metro-in-advance-of-2020-olympics.aspx

Starting in Los Angeles, Body Scanners Come to Subways and Buses

ImageA passenger at Union Station in Los Angeles is seen on a body scanner during a demonstration by the Transportation Security Administration on Tuesday.CreditCreditRichard Vogel/Associated PressLos

https://www.nytimes.com/2018/08/15/us/los-angeles-metro-body-scanners.html

不同意見出處

All Tokyo subway cars to have surveillance cameras installed ahead of 2020 Games | The Japan Times

Tokyo to Install 22,000 Security Cameras on Metro in Advance of 2020 Olympics -- Security Today

Starting in Los Angeles, Body Scanners Come to Subways and Buses