Following the recent earthquake in China's Xizang Autonomous Region, rescue efforts have been praised for their speed and efficiency. Within one day, most of the buried were pulled from the rubble. The local authorities confirmed to CGTN that all casualties from the earthquake had been identified within the first two days, with no missing persons reported. What's allowed for such a quick operation? CGTN's Chen Mengfei reports from Gurong Village, one of the worst-hit areas.