Bosengkham Vongdara, Lao Minister of Information, Culture and Tourism, speaks during a press conference in Vientiane, Laos, on April 2, 2018. The press conference on Lao traditional Khaen music's inscription to the world intangible cultural heritage by UNESCO was held in Lao capital Vientiane on Monday. (Xinhua/Phouthaphone sirivong)