John R. Yamamoto-Wilson <john@rarebooksinjapan.com> wrote:
> mtfester@netMAPSONscape.net wrote:

> > As always, make certain to always enter the US on your US passport
> > afterwards; otherwise, this can be considered a renunciation of choice.

> You mean one has the choice of using either passport but isn't allowed 
> to choose which one to use when entering the US? That seems very odd to me.

> I would have thought that the best way to make sure the Japanese 
> authorities did not have grounds to revoke the Japanese nationality of 
> someone who continues to enjoy dual citizenship rights while not in 
> Japan would be not to bring any evidence of citizenship of Japan into 
> the country.

> What would be wrong with leaving one's American passport in the US, so 
> as not to run the risk of being caught in possession of it by the 
> Japanese customs?

Again, this can be considered a renunciation; you would be, in effect,
telling the US immigration services to treat you as an alien. Not my
rule, but it does make sense.

Mike