北朝鮮の核弾頭ミサイルの標的は米国？

下記の記事が出ている。

　North Korea plans nuclear test and says rocket programme is targeted at US
　Guardian: 24 January, 2013
　http://www.guardian.co.uk/world/2013/jan/24/north-korea-nuclear-rocket-us

　North Korea says new nuclear test will be part of fight against U.S.
　CNN: January 24, 2013
　http://edition.cnn.com/2013/01/23/world/asia/north-korea-nuclear-test/

　North Korea in nuclear warning after UN rocket resolution
　BBC: 23 January, 2013
　http://www.bbc.co.uk/news/world-asia-21153409

[追記：2013年1月30日]

関連記事を追加する。

　South Korea launches space rocket carrying satellite
　BBC: 30 January, 2013
　http://www.bbc.co.uk/news/world-asia-21256683