The Joint Requirements Oversight Council's recent decision to approve a capabilities development document for the F-35's follow-on modernization effort without an independent cost estimate from the Pentagon's cost assessment and program evaluation office was somewhat contentious and not “ideal,” the head of the council said today. The JROC approved the CDD for the F-35's Block 4 follow-on modernization effort in March, at least 15 months behind schedule. Gen. Paul Selva, vice chairman of the Joint Chiefs of Staff and chair...