Authorities in mainland China have launched a nationwide campaign to eliminate fire hazards in high-rise buildings, days after Hong Kong’s deadliest blaze in decades tore through a residential complex – claiming at least 128 lives. The Work Safety Committee of the State Council, China’s cabinet, announced the sweeping drive in a notice on Saturday, according to state media. The notice pledged to “identify and rectify” fire risks across high-rise residential and public-use buildings, from tower...