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Amid the Chinese market's growing enthusiasm for self-driving technologies, Volvo has also tested its autonomous trucks in Beijing, hoping to apply them to local harbors, given that seven of the top 10 busiest ports in the world are located in the country, Volvo Group said.

Among the world leaders in manufacturing, Chinese companies are catching up with their latest in cutting-edge technology.

Among the most-popular facial recognition software used by police is Amazon's Rekognition.

Among signers of the statement were Donald Ayer, who was the Justice Department's No 2 official under Republican president George H.W. Bush, and Bill Weld, a former head of the Justice Department's criminal division under Republican president Ronald Reagan. Weld is making a bid to challenge Trump for the 2020 Republican presidential nomination.

Amid worries over trade tensions and debt risks, a number of key risks need to be tackled through the enhanced coordination of monetary and fiscal policies to avoid market turbulence, according to leading experts advising the nation's top financial regulators.