The commandant of the Marine Corps said today that he is open to scaling back the requirements of the F-35B, his service's variant of the Joint Strike Fighter, but stressed that the service is not seriously considering that option. “One of the reasons to have the leadership of the Marine Corps involved is that down the road there may be something that we have to look at and say, 'OK, is this as important as that?'” Gen. James Amos told...