Kathmandu, Nepal – On May 1, a team of officials from the United States – led by President Donald Trump’s special envoy for South and Central Asia, Sergio Gor – took a helicopter to the base camp of Mount Everest. Located at an altitude of 5,364 metres (17,600 feet), the base camp is where Everest climbers acclimatise to the thin air before heading towards the 8,849-metre (29,032ft) summit in Nepal, home to eight of the world’s 10 highest peaks. Recommended Stories list of 4 items list 1 of 4 Revealed: US grounded Chinese drones despite security warnings list 2 of 4 US-China head-to-head: Explained in 11 maps and charts list 3 of 4 Nepal lodges protest against India over long-running border dispute list 4 of 4 Photos: Trump in China for talks with Xi Jinping end of list The US team had reached the camp to test the capacity of their home-made Alta X Gen 2 drone in carrying supplemental oxygen bottles, ladders, mountain gear and food from the base camp to Camp I on the mountain’s southern ridge at an…