NEW YORK, June 28, 2016 (Xinhua) -- Liu Fang, secretary general of the International Civil Aviation Organization (ICAO), speaks during a joint interview with UN Radio and Xinhua News Agency at the UN headquarters in New York, on June 24, 2016. Civil aviation, which remains the safest among all transportation means, can play a very important role in promoting sustainable development across the world, Liu Fang said. (Xinhua/Li Muzi)
