蜜芽传媒

The cost of hosting the 2020 Olympic Games in Tokyo could be more than four times the original estimate, a report commissioned by the city's governor suggests. Why do the Olympics regularly miss budget targets and is it time to limit the event to a few rotating venues? David Wallechinsky is a historian of the Olympics.

(Image: The Olympic flag and the logo of Tokyo 2020. Credit: Kazuhiro Nogi/Afp/Getty Images)