I’m not even seeing this on any major news outlets. (Only 3 checked, as it’s really late.) Seems incredible, given the potential consequences.
The guy who broke the story last October has follow-up: http://krebsonsecurity.com/2014/04/u-s-states-investigating-breach-at-experian/
It is breaking on most majors (NBC, WSJ, etc.) do a google news search on “Social Security numbers”.