http://www3.nhk.or.jp/news/html/20151230/k10010356921000.html http://www.asahi.com/articles/ASHDN362VHDNUBQU00B.html http://mainichi.jp/articles/20151230/k00/00m/040/090000c http://www.nikkei.com/article/DGXLASDG30H1W_Q5A231C1000000/ http:…