Hong Kong police on Wednesday arrested four University of Hong Kong students on suspicion of promoting terrorism over a meeting held to mourn a man who killed himself after stabbing a police officer on a street.Charles Kwok, president of a student union, and the three others could face up to 10 years in prison under the national security law if convicted, according to the South China Morning Post.The four, aged 18 to 20, attended a meeting last month at which union council members passed a controversial motion "appreciating the sacrifice" of the assailant, according to a police statement.Th…READ FULL ARTICLE