The crippled Fukushima Daiichi nuclear power plant's upper part of the No.3 reactor building is seen from a bus window, November 12, 2011. REUTERS/Kyodo.

On Saturday, Japanese government representatives and TEPCO officials escorted a group of Japanese and foreign journalists inside the badly damaged Fukushima Daiichi nuclear plant for the first time since March 11. This was the first time media were allowed in after a tsunami and earthquake eight months ago triggered the world's worst nuclear crisis since Chernobyl.

TEPCO and government officials hoped to show the world that the situation inside Fukushima is under control, eight months later. Visiting reporters had to wear protective gear, and undergo radiation screening. They saw crumbling reactor structures, huge piles of rubble, twisted metal fences, dented water tanks, and trucks overturned by the massive tsunami wave. Smaller administrative buildings nearby remain just as they were when office workers fled the oncoming wave, on March 11.

Authorities said they are hoping to reach full cold shutdown, but the reactor at Fukushima is not yet fully under control. It may take decades to safely close this site.

Reports from today's tour: Reuters, Associated Press, and the New York Times, with more here. AP also has a report today on conditions for workers. Related: The Institute of Nuclear Power Operations has released a detailed, minute-by-minute timeline of the events that unfolded at Fukushima Daiichi on March 11. The report was delivered on Nov. 11 to U.S. industry executives, the NRC, and of Congress. Read the rest

[Video Link: YouTube, PBS.org]

I traveled to Japan with PBS NewsHour science correspondent Miles O'Brien to help shoot and produce a series of NewsHour stories about the aftermath of the March 11 earthquake, tsunami, and nuclear disasters. One of these just aired, and is above. It's the story of how a group of hackers and internet folks are working with Japanese volunteers to harness DIY technology to record and share data about radiation hotspots.

We traveled with Safecast on a radiation-data-gathering drive from Tokyo to inside the voluntary evacuation zone, close to the Fukushima Daiichi nuclear plant. We monitored readings on the ground and in the air with the Safecast team all along the way. You'll see what those contamination levels were, and what and whom we encountered, in this video.

Some of the voices in this piece are familiar names to regular Boing Boing readers: Joi Ito, Sean Bonner, and others. One DIY/Maker/hacker culture hero we interviewed whose work you see is Bunnie Huang (I was thrilled that this project allowed me to meet Bunnie in person for the first time).

In the NewsHour story, airing exactly eight months to the day after the March 11 disaster, you'll see the geiger counters the Safecast team have developed with Sebastopol, California-based Dan Sythe and International Medcom. The successor to the "B-Geigie" Safecast is using now will be a device Bunnie designed (which looks really elegant, by the way). Oh, and these geiger kits were assembled in the very cool Tokyo Hacker Space, a central site for the Safecast movement. Read the rest