HONG KONG (AP) — A day after Hong Kong picked a new pro-Beijing leader, police are planning to arrest student leaders and other prominent figures involved with the huge 2014 "Umbrella Movement" pro-democracy protests, activists said Monday. Police have informed nine people that they will be charged with committing a public nuisance, the Demosisto political party said. [...] the arrests will likely stoke doubts about the authorities' intentions among residents already worried about mainland China's tightening grip on the semiautonomous city.