In Hong Kong, riot police squared off Wednesday evening against demonstrators at a suburban train station, the site of an attack one month ago by masked men on protesters returning home from a pro-democracy march. Protesters say the assailants in the July 21 attack have ties to organized crime, and they say authorities colluded with the attackers by failing to prosecute them. Meanwhile, Chinese officials have acknowledged for the first time that an employee of the British Consulate in Hong Kong has been detained in mainland China for the past 15 days. Twenty-eight-year-old Simon Cheng went missing on August 8 after sending his partner an eerie message reading, “Pray for me,” as he rode a train bound for Hong Kong. His case has renewed fears over a now-suspended bill that would allow Hong Kong residents to be extradited to mainland China.