http://headlines.yahoo.co.jp/hl?a=20130818-00000510-san-soci

http://headlines.yahoo.co.jp/hl?a=20130819-00000049-jij-soci

http://news.goo.ne.jp/article/sankei/nation/snk20130820113.html

http://www.nikkei.com/article/DGXNASGD16098_Q3A820C1MM0000/

http://news.goo.ne.jp/article/mainichi/nation/20130820k0000m040129000c.html http://news.goo.ne.jp/article/mainichi/nation/20130820k0000m040130000c.html

http://news.goo.ne.jp/article/nhknews/nation/nhknews-10013903011.html