China warned the United States to “stop interfering” in the Winter Olympics on Thursday, a week before the controversy-hit Games are due to start in Beijing. As the first city to host both a Winter and Summer Games, Beijing has been hoping to turn next week’s sports extravaganza into a soft power triumph. But the lead-up has been clouded by a US-led diplomatic boycott over China’s human rights record, particularly its policy towards its Uyghur Muslim minority in the Xinjiang region that Washington has labeled a “genocide.” China’s top diplomat Wang Yi spoke with his US counterpart Secretary of…