Is ninjutsu banned in america and japan?
Ninjutsu is not so much an individual style as much as it is a collection of skills primarily used in covert warfare such as gathering intelligence, stealth entry, and concealment. The closest legal thing to a ninja in modern society is a Marine sniper, Navy SEAL, or a Spec. Ops. soldier. Stealth entry techniques are also done by burglars and assasinations are often done by terrorists but thius can lead to mucho legal trouble. Naturally there are many snake oil salesmen out there looking to cash in on adolescents with anime fueled masturbatory fantasies of Morphin’ Rangers and Teenage turtles so the quality of training is suspect. So long story short if you wish to legally get any use out of any of this my advice is find the nearest military recruiter.