http://www.sankei.com/economy/news/160516/ecn1605160002-n1.html

http://www.asahi.com/articles/DA3S12360491.html https://twitter.com/Yama_law/status/730651467317575680

http://www.tokyo-np.co.jp/article/kakushin/list/CK2016051702000137.html

http://www.sankei.com/west/news/160517/wst1605170010-n1.html

http://www3.nhk.or.jp/news/html/20160516/k10010523251000.html