i'm roselyn debhavalya in bangkok. >>> emerging economies, powers still struggling with poverty.volving citizens demanding democracy. the threat of violence. the push for peace. the shadow of conflict. get news and insight on southeast asia every weekday live from bangkok only on nhk "newsline." >>> people in japan are remembering the world's worst single aircraft disaster. the relatives and friends of victims are traveling to the remote site where tragedy unfolded 31 years ago. on august 12th, 1985, a japan airlines jumbo jet crashed into a mountain ridge in gunma prefecture north of tokyo. only four people survived. the other 520 people on board died. every august 12th since then, their loved ones have been climbing up the mountain to pay their respects. relatives also want to find a way to pass lessons from the accident on to future generations. nhk world's kazuaki hirama reports from the memorial service held about ten kilometers away from the crash site on the mountain ridge. >> reporter: today is similar to that day 31 years ago, a hot summer day with the sound of skieras,