Originally Posted by
jib71
Yes. The checks at the airport perimeter and railway station were primarily aimed at protecting the airport itself from domestic militants. The decision to move to cameras with face recognition is probably down to the fact that they know who the militants are. You can be sure that the police have been monitoring them for the last few decades.
Or the fact that the militants now run the offsite parking lots, work at the airport or hotels, or are otherwise dependent on the airport so they have probably redirected their efforts to stopping more international flights at Haneda.