An interesting pdf here of the Inspector General's report into the F-35 programme, published on Monday. It does expose a number of the problems with the programme, but it should also be noted that some of the issues cited in the report have already been either identified or fixed.
http://www.dodig.mil/pubs/documents/DODIG-2013-140.pdf
The reaction to the report from the F-35 Project Office was “thorough, professional, well-documented and useful to the F-35 Enterprise.”