It's long overdue. The military lost jet pilots in fighters in the 50s
and 60s due to cockpit pressurization failure despite the ready
availablity of oxygen-guys didn't notice and passed out. Then there was
Payne Stewart, which proved 1) product liability is bull**** (else the
Stewarts would now own a chunk of real estate on Harry St. in Wichita)
and 2) it can happen, will happen, and there is an obvious fix.