http://headlines.yahoo.co.jp/hl?a=20160327-00000033-khks-l04

http://www3.nhk.or.jp/news/html/20160402/k10010465411000.html

http://mainichi.jp/articles/20160402/ddm/012/040/040000c

http://headlines.yahoo.co.jp/videonews/nnn?a=20160401-00000069-nnn-soci

http://www.asahi.com/articles/ASJ3L7H59J3LUTIL088.html