They have the same red lane/green lane in Japan at customs......it's just that they stop everyone and question them! And just because you are all "okyaksama" (that is after they photograph and fingerprint you), and they take pity on "certain gaijin " for not speaking Japanese they let you shuffle through (not to mention all the Y-Men and their lady friends coming back from BKK with their bags stuffed full of drugs and copy LV), but me they search and hassle until I start taking off my clothes.....Then they let me go with a "sumimasen". The Japanese customs officials are dorks!