Global stocks dive after China sets up a fresh showdown with Trump and shocks investors by announcing a new Hong Kong security law

· Global stocks dropped Friday after China imposed new rules that seek to extend its powers over Hong Kong and allow it to crack down on dissent in the semi-autonomous region, setting Beijing up for a showdown with the US.
· Hong Kong's Hang Seng index shed more than 5% on the day, while European stocks also dropped, and US...