I learnt Shuriken jutsu from Fujita's son in law & Nawa sensei who was master in many old japanese martial art traditions (see Charles Gurzanski's books in english)...
Please stop to speak about historical things than you do not know as always Bujinkan young people...
>歴史的な事を知らない武神館のガキどもが言うような事を言うな。
Bujnkan Organisation is NOT now a martial arts with japanese heart but with american feelings, making polemics than true japanese martial art training.