Apparently this is the seventh one. I've never worked on a safety critical system but this is the story that makes me wonder what it's like to do so.

It’s stressful, but often worthwhile. It requires diligence, deliberate action, and patience.

I used to work on public safety radio systems. Things which seem like minor issues like clipping the beginning of a transmission every now and then are showstopper defects in that space.

It’s because it can be the difference between “Shoot” and “Don’t shoot.”