Yes, saw that.... but that experience hinged on a total screw up prior to boarding in vietnam... then when they got to NRT the 'illegal' connection was discovered. Whichever airline allowed this COULD have been held liable for that pax to be removed from Japan.

Im trying to discover what the Japanese/NRT policy is to deal with a 'legal' connection that collapses due to -shall we say- force majeure. and in turn requires an overnight wait.

I would guess two possibilities:

1. Room with a guard for anyone that has to stay, cots, snacks perhaps

2. Pass for a hotel at airport. (ie a kind of 'emergency visa' for one day)