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Among the dead, four were standing on the edge of the bridge following the crashes, afraid of being hit by other vehicles, but they accidentally slipped off the bridge as the roadway had become too icy, police said in an afternoon press release.

Amazon’s announcement came two days after IBM said it would wind down its facial recognition products in response to the national racial justice movement. The ACLU is urging Microsoft to follow in IBM and Amazon’s footsteps.

Amid the concerns about facial recognition technology, Axon, the largest manufacturer of police body cameras in the US, has rejected selling facial recognition technology. The decision follows a report from Axon's independent AI ethics board, which concluded that facial recognition software is not reliable enough to justify its use in body cameras.

Americans are feeling more positively toward China a year after Donald Trump became the US president, with 53 percent of them saying they have a favorable opinion of China, the highest in nearly three decades, according to the latest Gallup World Affairs survey.

Among people age 15 or older in Beijing, the percentage who smoke decreased to 22.3 percent last year, a drop of 4.7 percent from 2014. The total number of smokers decreased by about 200,000, the report said.