I do not remember that Hackworth provided them.
I just heard on Fox that the CBS producer of the story on these documents is the SAME producer who broke the Abu Ghraib story!
Here are two links to stories confirming Hackworth and CBS --
http://www.newsday.com/news/nationworld/nation/bal-te.chip09may09,0,1722686.story?coll=ny-nationalnews-headlines
And this from the NYT via Free Republic --
http://www.freerepublic.com/focus/f-news/1131788/posts
Fox and Tony Snow now discussing "web sites who discovered this info."