www3.nhk.or.jp/news/html/20130523/t10014796181000.html
nikkei.com/article/DGXNASFL230O2_T20C13A5000000/
jiji.com/jc/c?g=pol_30&j4=&k=2013052300677&m=rss
jiji.com/jc/c?g=pol_30&k=2013052300813&m=rss
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nikkei.com/article/DGXNASFL230NL_T20C13A5000000/
jiji.com/jc/c?g=pol_30&k=2013052300641&m=rss
asahi.com/politics/update/0523/TKY201305230103.html?ref=rss
nikkei.com/article/DGXNASFS2301W_T20C13A5000000/
sankei.jp.msn.com/politics/news/130523/stt13052317440008-n1.htm