Indoor public spaces such as restaurants, workplaces, hospitals and public transport are supposed  _ from Jan 9 in China. On that day five years ago, China approved the World Health Organization's Framework Convention on Tobacco Control. However with the deadline days away, the government still hasn't come up with a clear message for the ban. An editorial from "China Daily" urges China to speed up its effort to ban smoking in public indoors. Referring to numbers from the Chinese Center for Disease Control and Prevention, the articles says if China fails to reduce tobacco consumption, the number of people killed by cigarettes will double by 2025 and three times by 2050, which is about 1.2 million now every year.  This would cut the productivity of the work force and places a heavy burden on the country's healthcare system. The article says China has let an opportunity slip to change these statistics for the better. The momentum , however was not strong enough to make the country's public places smoke free.  The editorial suggests that China should strengthen its effort to tax heavily smokers as there are no national regulations on banning smoking in public areas. What is the main idea of this passage ?
China should speed up effort to ban smoking in public indoors. China makes great efforts to ban smoking in public indoors. China approved the World Health Organization's Framework Convention on Tobacco Control. The government is criticized by the auther.