A competition to choose the official logo for the 2020 Tokyo Olympics closes on Monday. It's likely to end at least one of the many embarrassing chapters for Japan's Olympic committee, as Al Jazeera's Harry Fawcett explains. Subscribe to our channel http://bit.ly/AJSubscribe Follow us on Twitter https://twitter.com/AJEnglish Find us on Facebook https://www.facebook.com/aljazeera Check our website http://www.aljazeera.com/