16 mile spread. the govt of japan advises people to lock themselves in their houses or leave?

Get out is right. That radiation is going to be everywhere. Why don't they leave if there are places for them to go? Elderly , infirmed , afraid of change? Could be a lot of reasons. Some people feel safer staying home even though the sitation is bad. I feel for them. Must be very scary. We can't possibly image how horrible that would be.