This would seem to be a very important story. Yukihisa Fujita, a member of Japan's legislature recently grilled the Prime Minister and other cabinet ministers on whether the Japanese government has adequately investigated the facts of 9/11, given that it is a crime in which Japanese citizens died, and given that it is the premise for the "War on Terror."
The videos are here:
Rough translations have been provided in subtitles which discuss the Pentagon strike and put options. You can also see photos of the Twin Towers, the Pentagon, and WTC7 being shown by Fujita. The order of the videos is wrong: the third video should be viewed before the second. The first video does not have visual aids so is hardest to follow if you don't understand Japanese.
Fujita is a member of Japan's largest opposition party, the Democratic Party of Japan (DPJ). The DPJ is the second largest party in the lower (but perhaps more powerful) House of Representatives in the Japanese Diet (Parliament), and the largest party in the upper House of Councillors. Fujita is a member of the House of Councillors.
These questions are being raised in the context of debates over the government's proposed anti-terrorism law, the opposition party's refusal to approve refueling assistance to the U.S. military, and the opposition party's alternative anti-terrorism proposal which calls for development assistance to Afghanistan.
It is reported that these videos were shown to a national audience by the state-run television, NHK.
Dwight Van Winkle