No serious damage to the reactors. that's the good news. the good news might stop there. still, the threat to these plants is immense. what do you see? >> yeah, i think you're absolutely right. there's no evidence of reactor core damage up to the moment. but the issue is there's so many collateral systems, if you like, that are much more exposed. for example, backup power generation would be absolutely essential if the grid electricity were cut off. you have the fuel supply for that. so these systems are much less hardened. and as the chaos and as the troops are coming in, those are the system...