One last question. Not that it isnt nice-looking or anything, but whats up with the Scottish tartan and dirk as background to a website about ancient Japanese martial arts?
Hatsumi senseis view is that a true martial art and certainly his own budo is not constrained by nationality, historic period or culture. Its principles are timeless and applicable to all circumstances, conditions, and weapons. Dale Seago is of Scottish (Clan Douglas) descent on his mothers side (and Irish on his fathers), and he identifies strongly with his Scottish heritage; hence his use of the Douglas tartan and dirk at his dojos site.