the first japan bill containing virtual currencies is expected to come on april which recognizes bitcoin as a method of payment.Although,it doesnot define bitcoin as a legal currency,it is still considered as a remarkable progress for bitcoin in japan.Hope, most of tourists who would go to japan to see 2020 olympics would be able to pay in bitcoins.
It will be a nice step from Japan to support bitcoin from their country it will give more strength to their nation in return and it is wrong to say that it will support terrorists because KYC is going to implement as I heard.