

The model assumes a linear relationship between dose and health effects, even for very low doses where biological effects are more difficult to observe. The LNT model implies that all exposure to ionizing radiation is harmful, regardless of how low the dose is, and that the effect is cumulative over lifetime.
Emphasis mine. Sure that’s a valid model, but not backed up by concrete empirical evidence.
Okay I didn’t understand OPs point I suppose. Worth nothing that they are designed to withstand airplane hits.
Actually we don’t know that and there’s no valid empirical evidence to support that claim. We only have data at moderate to high levels. There’s a big gap between walked passed a container of level waste and got impacted by a nuclear destination.