Actually, it was about Okinawa. The previous PM of Japan, Hatoyama, made loud noises about forcing the U.S. to move it's military base off of Okinawa ("The time has come for us to seek a more equal relationship with the U.S." @see http://www.time.com/time/magazine/article/0,9171,1978647,00....), and the Toyota episode was a way to slap the wayward child on it's hand and show him who's daddy.

After Japan cried "enough" and sent Hatoyama packing, things slowly started to return to "normal".

Toyota ADRs have rallied 19% since Hatoyama's resignation.

Also, by the way, there is a small U.S. presence (not 100% sure if it military or otherwise), but there is a clear area right in the middle of Tokyo in the Roppongi area which seems to be reserved for U.S. personnel. You can see helicopters (and they sure as hell looked military) land there regularly from the top of the Mori Tower building. The "H" for the helipad is quite visible even on Google Maps in Satellite mode, and whenever I saw a U.S. helicopter land there, I used to wonder how any country can be such a puppet to another and still act "free". The lack of awareness and discussion about that area and the lack of access to it by everyday Japanese spoke tons about the Japan-U.S. relationship. I believe Hatoyama stood for the right thing.