Note - Osawa sensei taught by taking ukemi.
I recognized some people in the video from the old days. Notable was the Japanese-American guy with the long hair and beard. Don't remember his name, but we called him "The mugger's mugger," because he liked to go out at night, looking frail and helpless, and then, when someone tried to rob him, disarming the attacker and taking his knife or other weapon. He reportedly had a collection of weapons he'd taken off people.