The death toll in Hong Kong’s worst fire in seven decades climbed to 83 on Thursday as many remained missing and a grief-stricken city rallied as one with authorities, private companies, charities and ordinary folks donating hundreds of millions to the victims and their families. The towering inferno that tore through seven blocks at a Tai Po housing estate under renovation was gradually brought under control after raging for more than 24 hours. But firefighters were still battling untamed...