She was fascinated by Tokyo's apprentice geishas as they paraded around town, and she copied their fancy costumes and heavy make-up.

ECONOMIST: Kiharu Nakamura, a geisha, died on January 5th, aged 90

Giaka wore heavy make-up and a "Shirley Bassey" wig - and the interview had to be conducted in a moving vehicle.

BBC: Waiting for the 'supergrass'

Heavy make-up or a mask will also work, as will tilting your head at a 15-degree angle, which fools the software into thinking you do not have a face, according to an online guide produced by hacktivist group Anonymous.

BBC: 'Privacy visor blocks facial recognition software'

Heavy goods vehicles make up less than 2% of all vehicles but they are responsible for a third of all nitrous-oxide emissions, nearly half of all particulates and a quarter of carbon dioxide generated by road transport.

ECONOMIST: Fuel taxes