On January 10, during debate on whether Japan should renew its law allowing the Marine Self-Defense Forces to provide refueling support to U.S. military vessels in the Indian Ocean, a member of Japan's largest opposition party questioned whether the Japanese government has sufficiently examined 9/11 as a premise for this law and for the 'war on terrorism." He repeatedly states that this was a crime and as such must be investigated properly.
Full speech, Japanese only:
Here are videos with subtitles that are generally accurate but still need work, mainly for completeness.
I'm hoping that in a week or so a full and accurate translation will be available.
Even if you don't speak Japanese, you will recognize some of the arguments being made when the Japanese Diet member uses visual aids.