This article in BBC News is titled Anti-groping Cameras Set For Tokyo Train Lines.
"Train gropers - or chikan - are common characters in Japanese popular culture. A railway company in Japan is to install special cameras on its Tokyo commuter trains to help deal with the problem of groping on public transport. In a survey, four in five women report being molested on public transport."
If I lived in Japan, I would be selling big giant old fashioned hat pins to women as they arrived at the train stations. Instead of Bag Lady, I would be known as Prick Lady and proud of it. I could hold classes to teach the timid Japanese ladies exactly where to aim the hat pins!