There is a huge amount of evidence showing that our government has lied massively on the OK City bombing episode. They want to create the image that OK City and 911 are linked to discredit those who point out how our government has lied about OK City and to draw attention away from the lies they told.
What?
That'd be my guess. The story is the story! Where'd it come from; who, what, why... The piece rings too true to have been cut from whole cloth, but I've been fooled a time or two. Motivation? Who stands to gain most from these apparent revelations? I don't know, but there's probably some conspiracy types that could come up with something.
FGS