COLORADO SPRINGS, CO -- The head of Space Operations Command today cast doubt on the prospect of building out a second Space Fence site in the next few years. “The American taxpayers generously fund us, but we still have more requirements than dollars,” Lt. Gen. Stephen Whiting told reporters today at Space Symposium. “So, we’re having to make some difficult calls there. But you will see more sensors. I don’t know yet if we’ll get Space Fence 2 here in...