It's perhaps unfair to label as vengeful those who take legal action against parties they believe responsible for killing their family members. Retribution in the eyes of some may be just, if inadequate, compensation in the eyes of others. But the issue isn't about a point of perspective. I fully understand that learning from errors requires transparency which may be at odds with the adversarial nature of litigation. That tension isn't new and will never be resolved. But there is also a corner where the failures of supposedly highly-trained and trusted professionals reach the level of negligence, even criminal negligence. And to justify allowing culpable individuals to escape responsibility on the alter of fixing safety flaws in the system seems unjust.