(Reuters) - U.S. regulators could file civil fraud charges against some credit rating agencies, and settle with more Wall Street banks, for their role in developing mortgage-bond deals that helped trigger the financial crisis, the Wall Street Journal reported, citing people familiar with the matter. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=JttgUBKYNcw:AdKFP75YVHQ:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=JttgUBKYNcw:AdKFP75YVHQ:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/JttgUBKYNcw)