Joint Strike Fighter software challenges threaten to delay Navy and Marine Corps initial operating capability schedules, the F-35 program executive officer said today. Air Force Lt. Gen. Christopher Bogdan told reporters after a House Armed Services tactical air and land subcommittee hearing that the Navy is at risk of experiencing a three- to four-month delay in declaring IOC, while the Marine Corps faces a 30-day delay. The Marine Corps' objective for IOC is July 1, 2015, with December 2015 as...