The Air Force has extended its stand-down of F-35s at Luke Air Force Base in Arizona to determine what has caused a string of oxygen system failures in its newest fighter jet.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.
And no one knows that better than military service members and we have the pictures to prove it.