I really don't get all the high levels of excuse in this thread. Think about the victims here: think about putting your (terrified) kid a storm drain. Really think about it, let the feelings about it sink in.

The only correct solution is to fire the person involved, as the next guy will look closer. Yeah maybe not fair, but when working with landmines you have to pay attention - and it is politically much more feasible than redesigning the system.

However I also object to that system in the first place, since it doesn't matter where you hide if a nuke falls close to you, and you probably don't want to survive.