MADRID (Reuters) - Rating agency Moody's put Spain on review for a possible downgrade on Friday, adding to concerns that a Greek rescue package has done little to halt the spread of Europe's debt crisis. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=egkkQvPDFAM:d0TKlPmjXqQ:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=egkkQvPDFAM:d0TKlPmjXqQ:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/egkkQvPDFAM)