Barit - here is the audit report on FAA costs:
DOT - Contract Towers Continue To Provide Cost-Effective and Safe Air Traffic Services, but Improved Oversight of the Program Is Needed | Office of Inspector General it's worth reading the PDF.
Meanwhile....
Lots of media manipulation over the past days on FAA sequestration impacts, most of it fluff.
Scandalous in fact, FAA getting less and less reliable and more and more like French ATC for consistency these days.