Yes, Ninjutsu.
I believe Bujinkan is something like the "kodokan" (judo's home) of ninjutsu.
The name Taijutsu is used, instead of ninjutsu, because I believe they defend ninjutsu is a wider concept, and Taijutsu is the hand to hand combat, weapons combat, and so.
Not sure of what I am saying. I know some people training this at Portugal, since there are quite a few schools here, and this is a general notion I picked up from talking with them.
I always found this item of gragbing someone's hand with one hand, and taking it over our head, send the person away, a very interesting mistery.
I wonder why at judo olympics people dont use this idea, instead of that nonsense of passing long minutes grabbing people by their clothes, with both hands, and still have to work a lot to throw someone!

A bit like arm bars... How incompetent we all must be, as we sometimes have one arm of someone grabed by our two arms, sitted down with our legs helping the process, and still the other guy escapes!
Is the guy houdini? Are we all doing things wrong? Judo people are not so bright? Or the ninja guy, and everyone else that throws one, two, three guys at a time with one hand, are simply out of our league?!?

Sorry. After 23 years of seeing this kind of stuff, I cant help it...