A new and highly detailed Selected Acquisition Report on the Joint Strike Fighter reveals that F-35 engine cost growth in 2012 is the result of the program office's accidental allocation of some cost to the JSF aircraft program instead of to the F135 engine, the cost of which is calculated separately. The 92-page SAR, obtained by InsideDefense.com, goes well beyond a summary released yesterday by the Defense Department. That summary estimated the F-35 program's total acquisition cost at $391.2...