Beijing has slammed “irresponsible remarks” by Britain after a UK report said Hong Kong’s national security law had further diminished the openness that underpinned the city’s success. In the United Kingdom’s latest six-month monitoring report on Hong Kong, released on Thursday, Foreign Secretary Ed Miliband said he was “deeply concerned and disturbed” by the continued imprisonment of former media boss Jimmy Lai Chee-ying, who was jailed for 20 years over national security offences. “We continue...