A batch of cocaine that has killed at least 20 people in Argentina appears to have been laced with a synthetic opioid, and police are scrambling to get as much of it off the streets as they can.
Four of Boris Johnson's closest aides quit on Thursday and his finance minister criticized him over a barb he made about the main opposition leader — heaping more pressure on the British prime minister amid growing calls for him to resign.
The 2022 Winter Olympics open Friday under heavy security and warnings from officials that athletes or others could face legal action if they speak out on human rights or other touchy issues.
The president of the International Olympic Committee sought to play down concerns about the safety of Chinese tennis player Peng Shuai on Thursday while also saying he planned to go ahead with their long-promised dinner during the Beijing Games.
A major winter storm with millions of Americans in its path spread rain, freezing rain and heavy snow further across the country on Thursday, knocking out power to more than 100,000 homes and businesses and disrupting flights at the busy Dallas Fort Worth International Airport.
