wei liu, here on the island of kinmen, overlooking china.pretty strong that, at some point, it could happen. the depressing fact is our world seems to have reached the end of the era of post—second world war peace. it's lasted my entire lifetime — 80 years. a period of unimaginable growth and prosperity right around the world. yet now, president putin talks about the possibility of all—out nuclear war, donald trump hints at invading greenland and panama, and china has built up its forces to an alarming degree. can we get back easily to peaceful coexistence again? sadly, history isn't encouraging. and yet, things can change radically and unexpectedly. back in 1989, almost everyone thought the soviet system was fixed forever and it started collapsing in a matter of weeks. could the same thing happen to the communist system over there in china? looking out towards the chinese mainland, it's impossible to say. but so many extraordinary changes have happened in our lifetimes, perhaps we should never say never. well, that's it for this special edi