The Pentagon completed its fifth deep-dive review of the next-generation GPS Operational Control Segment last week, and concluded that prime contractor Raytheon "continues to make progress." Software and systems engineering challenges have led to significant delays to OCX. The program triggered a Nunn-McCurdy review last summer when officials revealed its program acquisition unit cost had risen 29 percent over a rebaselined 2015 cost estimate. Pentagon spokesman Cmdr. Patrick Evans told Inside the Air Force April 25 that the April...