You could (for instance) argue that once the product exists, and is in place, it poses no further risk to anyone - this is a common suggestion but is demonstrably, dangerously false. It’s a rock, it never breaks down. Its state never changes over mortal timescales. Eventually a building, or a rocket, or a train will be refurbished or scrapped - and when that happens people in the area are at no less risk than they ever were.