I saw this documentary at the 2008 International Film Festival in Tacoma, WA. The film-maker was present at the festival, and she sold me a DVD which I have donated to my local library. It is a well researched and produced account of one way in which the Japanese tried to derail America's WW II effort. The Japanese knew that the prevailing westerly winds could be used to carry a balloon-based weapon to our west coast. So,they formulated a plan to send fire bombs to damage our forests. Schoolgirls were enlisted to make parts for the balloons.The girls proceeded to do their patriotic duty, but after the war when they learned that only one of the bombs had done damage, and that it had killed innocent children in Oregon, they made contact with our authorities and later visited to apologize for their actions. The film shows a remembrance ceremony. The anti-war message is unavoidable. Everyone should see this film.