we can see the danger

but the system won’t act

These 9 problems invert what engineering students expect about safety: the sensor works, the danger is detected, the system doesn't act. A pipeline operator ignores a leak alarm after years of false positives. A hot bearing detector fires but no federal standard requires the train to stop. A breast implant adverse event is reported but no mechanism forces long-term follow-up. Green hydrogen is certified but no standard requires temporal matching. The failure isn't detection — it's the broken loop from signal to action.

The sensor works. The alarm fires. The danger is real. But no regulation requires anyone to do anything about it — so the signal gets ignored until the disaster happens.