Hong Kong’s security chief has warned that booksellers are responsible for ensuring their titles do not violate national security legislation, a day after police raided two independent stores and arrested five people on suspicion of sedition. Secretary for Security Chris Tang Ping-keung also reiterated on Thursday that the government would not compile a list of “banned books”, arguing that doing so would create loopholes where offenders could evade the law by simply changing a title. Tang’s...