Here are some interesting Youtube videos out of Japan showing efforts by workers to regain control of the Fukushima Daiichi nuclear reactors.
This first one (made approximately March 22nd) shows workers spraying water on top of a damaged reactor building.
This second one (made March 27th) is a fly over of the facility. It is still a smoking mess.
These are 2 out of over 270 videos from the Japanese earthquake/tsunami/nuclear disaster uploaded by YomiuriShimbun (website: yomiuri.co.jp)