as you know there are many people in japan, the population there is very dense. so where are all these people going to go if the nuclear crisis goes to worst.. many japanese are leaving to south american countries. peru is a popular destination for japanese citizens. if you ever been in peru, you will see many japanese people there. also there are some countries in central america that welcome japanese visitors, like there's this little country called el salvador. its a poor country, and if all those japanese people go there, they can help the country development. japanese people are highly educated and can help their host country. another popular destination is the US and candada. but its harder to get visas there.