Japan's revised smoking measures threaten smoky 2020 Olympics, critics say

FILE PHOTO - A man smokes at an 'izakaya' restaurant or pub in Tokyo, Japan March 15, 2017. REUTERS/Issei Kato

TOKYO (Reuters) - Two Japanese doctors on Wednesday raised concerns about the government's latest effort to prevent second-hand smoking, saying it could lead to the 2020 Olympic Games in Tokyo being held in an "extremely smoky environment".

The criticism comes a day after the government announced the thrust of planned revisions to a law on second-hand smoking, saying smoking would continue to be permitted in small bars and restaurants that put up warning signs for potential customers.