Enlaces sobre el conflicto de Irlanda del Norte...

http://www.bbc.co.uk/mundo/internacional/2010/06/100615_video_reino_unido_bloody_sunday_pea.shtml

http://www.bbc.co.uk/mundo/internacional/2009/10/091028_video_muro_belfast_turismo_mt.shtml

http://news.bbc.co.uk/hi/spanish/international/newsid_4723000/4723897.stm

http://news.bbc.co.uk/hi/spanish/international/newsid_4724000/4724749.stm

http://news.bbc.co.uk/hi/spanish/international/newsid_6634000/6634801.stm

http://www.u2.com/discography/lyrics/lyric/song/127/