A "ninja council" has been set up by mayors and governors from around the country, who ditched their office wear in favour of ninja gear to launch the new initiative, the Japan Times reports. Officials are hoping that global interest in the mysterious figures will encourage people to visit Japan. It's a "subject that always comes up whenever we go abroad to promote tourism," says Hiroshi Mizohata, former head Japan's Tourism Agency. The council wants local authorities and tourism bodies to put the ninja front and centre - a position the stealth assassins historically tried to avoid, the report points out. It will also be holding ninja-related events.
Japan Ninja Council http://ninja-official.com/
If you are serious historical Ninja researcher, don't expect much. It's only for tourism.
But Japanese explaination of "What's Ninja" on their web site is pretty accurate (for now).
They don't hesitate to admit that the images of Ninja we have were mostly fabricated in Edo period.
Although they still intend to make Okuse Heishichiro look autnority. His Ninja book is full of fictions created by himself.