HONG KONG - Hong Kong police said Wednesday they have made the first arrest under a new sweeping national security law that went into force late Tuesday.The police arrested a man for allegedly holding a flag advocating the territory's independence in violation of the law, they said on Twitter, with photos purportedly showing the flag spread on the floor.Related coverage:China enacts national security law for Hong Kong, freedoms in crisis#BREAKING: A man was arrested for holding a #HKIndependence flag in #CausewayBay, Hong Kong, violating the #NationalSecurityLaw. This is the first arrest ma…READ FULL ARTICLE