Here is a puzzle. The other week Yazhou Zhoukan, a news magazine which has baffled foreigners’ efforts to pronounce its name properly since the early 1990s, hosted an event and invited a guest to address the assembled multitudes. The guest was the Secretary for Security Chris Tang. This is a strange choice. In the days when I was often invited to or running such things, you usually got the director of information services. This person at least had some knowledge of media matters, although I recall interviewing a freshly minted one on an RTHK programme who was suffering not so much from stage f…