(Editor's Note: This article was updated at 4:30pm with a Boeing statement.) An upcoming milestone review for the Future Combat Systems program provides a much-needed opportunity for the Army and the Defense Department to assess the maturity of the program and adapt their approach accordingly, the Government Accountability Office says in a new report on the Army's top modernization effort. The report says that while the Army has made some progress with FCS, the effort's critical technologies remain too immature...