http://slashdot.jp/story/13/08/17/208206/

http://www.asahi.com/national/update/0818/NGY201308180013.html

http://headlines.yahoo.co.jp/hl?a=20130818-00000020-fminpo-l07

http://headlines.yahoo.co.jp/hl?a=20130818-00000005-asahi-soci

http://mainichi.jp/feature/news/20130806org00m010022000c.html