Apparently the doj has been investigating this stuff since May. I think I also read that its using much of the capacity of the doj to do this which makes me suspect that they just might be further along that folks think. I also believe that the guy in charge of the doj is serious and making sure that if he charges he wins. Now add in that guy also has reasons to really have at it.
I believe, if I am right, that things are actually moving on with vigor and a will.
Another "in the fullness of time things ...." Seems to be the standard these days.