I would add Resourcing to the list. Have Delta airlines joined the mob of traditional big businesses who decide technology is expensive and send it to the cheapest possible?
Alternatively it could just be an catastrophic infrastructure failure.
Alternatively it could just be an catastrophic infrastructure failure.
Deltas generally regarded as the well oiled machine of the airline industry. You're paying for always on time and consistent quality.
It's one of the reasons a story like this is surprising.
No source listings that I know of.