anti-japanese sentiment since world war ii. and that rivalry still very much apparent until just six months ago. this is the dead volcano in disputed waters. it's become a political battleground between china and japan. so there's no way of telling if this mutual respect is going to last, but it's certainly good to see. >> hopefully, maybe after the crisis is over as well. >> here's hoping. >> thank you, carl. a reminder that our viewers too can help japan by going to cnn.com/impact. well, could something like japan's disaster actually happen here, in the united states? some u.s. nuclear power plants are close to earthquake fault zones. we're going to talk about that with an expert. ays to treat yourself to lobster.