Photo taken on August 20, 2016 shows visitors dressed as comic characters at the MASH! 2016 Sydney Manga and Anime Show in Sydney. The two-day event in which thousands of fans dress up in "Cosplay", showcases the latest comic books, animation, cartoons, science-fiction, and console gaming, runs from August 20 to 21 at Sydney Rosehill Gardens. / AFP PHOTO / PETER PARKSPETER PARKS/AFP/Getty Images

Photo taken on August 20, 2016 shows a girl dressed as comic characters at the MASH! 2016 Sydney Manga and Anime Show in Sydney. The two-day event in which thousands of fans dress up in "Cosplay", showcases the latest comic books, animation, cartoons, science-fiction, and console gaming, runs from August 20 to 21 at Sydney Rosehill Gardens. / AFP PHOTO / PETER PARKSPETER PARKS/AFP/Getty Images

Photo taken on August 20, 2016 shows a girl dressed as comic characters at the MASH! 2016 Sydney Manga and Anime Show in Sydney. The two-day event in which thousands of fans dress up in "Cosplay", showcases the latest comic books, animation, cartoons, science-fiction, and console gaming, runs from August 20 to 21 at Sydney Rosehill Gardens. / AFP PHOTO / PETER PARKSPETER PARKS/AFP/Getty Images

LONDON, ENGLAND - AUGUST 19: Workers use computers in the London Underground Control Centre on August 19, 2016 in London, England. The London Underground's 24-hour service begins for the first time in its 153 year history. The new Night Tube will see both the Victoria and Central lines run through the night on Fridays and Saturdays. (Photo by Jack Taylor/Getty Images)

(FILES) This file photo taken on June 23, 2015 shows NSA former intelligence contractor Edward Snowden seen via live video link from Russia on a computer screen during a parliamentary hearing on the subject of "Improving the protection of whistleblowers", at the Council of Europe in Strasbourg. Previously unpublished documents released by former National Security Agency contractor Edward Snowden confirm that some of the spy agency's top-secret code has been leaked or hacked, The Intercept reported August 19, 2016. The online news site's editors include journalists that worked with Snowden to publicize his notorious 2013 NSA leak revealing the extent of government snooping on private data. / AFP PHOTO / FREDERICK FLORINFREDERICK FLORIN/AFP/Getty Images

In this photograph taken on July 18, 2016, Indian biomedical engineer Kanav Kahoi gestures as he speaks holding his invention a device called 'Swasthya Slate' at his home in New Delhi. For asthma sufferer Mohan Lal, regular visits to the Indian capital's hospitals were a nightmare of waiting in endless queues in sweltering corridors that swarm with mosquitoes. But a spotless and air-conditioned clinic boasting innovative diagnostic technology and sharply-dressed doctors has just opened in Lal's neighbourhood, bringing healthcare into the 21st century. / AFP PHOTO / CHANDAN KHANNA / TO GO WITH AFP STORY: 'India-Health-Technology' FEATURE by Abhaya SRIVASTAVA CHANDAN KHANNA/AFP/Getty Images

In this photograph taken on July 13, 2016, an Indian woman (L), who has come for a treatment, gives her blood sample for a test at a Mohalla clinic (neighbourhood clinic) in New Delhi. For asthma sufferer Mohan Lal, regular visits to the Indian capital's hospitals were a nightmare of waiting in endless queues in sweltering corridors that swarm with mosquitoes. But a spotless and air-conditioned clinic boasting innovative diagnostic technology and sharply-dressed doctors has just opened in Lal's neighbourhood, bringing healthcare into the 21st century. / AFP PHOTO / MONEY SHARMA / TO GO WITH AFP STORY: 'India-Health-Technology' FEATURE by Abhaya SRIVASTAVA MONEY SHARMA/AFP/Getty Images

In this photograph taken on July 13, 2016, Indian Doctor Shoebul Haque (L) checks a patient as others wait at a Mohalla clinic (neighbourhood clinic) in New Delhi. For asthma sufferer Mohan Lal, regular visits to the Indian capital's hospitals were a nightmare of waiting in endless queues in sweltering corridors that swarm with mosquitoes. But a spotless and air-conditioned clinic boasting innovative diagnostic technology and sharply-dressed doctors has just opened in Lal's neighbourhood, bringing healthcare into the 21st century. / AFP PHOTO / MONEY SHARMA / TO GO WITH AFP STORY: 'India-Health-Technology' FEATURE by Abhaya SRIVASTAVA MONEY SHARMA/AFP/Getty Images