Jim Angel said that she testified before the 9/11 commission.
Go to the online version of The 9/11 Commission Final Report and do a search on "McCarthy" - there's 17 references.
Sample, Page 17:
"Mary McCarthy, the NSC senior director responsible for intelligence programs, initially cautioned Berger that the “bottom line" was that “we will need much better intelligence on this facility before we seriously consider any options.” She added that the link between Bin Ladin and al Shifa was “rather uncertain at this point.” Berger has told us that he thought about what might happen if the decision went against hitting al Shifa, and nerve gas was used in a New York subway two weeks later."