NHK Reports on Tepco's efforts to stabilize the plant: "They say the amount of radioactive substances released from the plant was about 200-million becquerels per hour in the first half of September. They say that's about one-four millionths of the level of the initial stages of the accident in March...."
Tepco claims radiation released at 200 million becquerels an hour. Compare this figure with the ones provided by Busby and Gunderson:
Busby stated that plant emissions were reported to the Japanese Prime Minister by Tepco to be 10 to the 13 becquerels per hour.[i]
gigabecquerel or GBq 109 Bq), [ii]
The NHK story also says that they plan to achieve cold shutdown within this year; however, I am not sure how cold shutdown can be achieved given that the corium is no longer fully, or at all, contained in the RPV (reactor pressure vehicle) in at least 2 of the reactors (1 and 3).
On second thought, given that their stated goal is to bring the temperatures in the RPVs down to below 100 degrees, maybe they can achieve it given that the coriums are no longer inside the reactor pressure vehicles:
"The operator also plans to improve its cooling systems so that the temperatures of all 3 reactors will drop below 100 degrees Celsius."
Tepco is also reporting that ground water seems to be flowing into the basements of the reactors (where the corium may reside). This is not good, says Tepco
[i] Dr. Christopher Busby interviewed by Russia Today (RT) and uploaded to YouTube “Christopher Busby: Chernobyl-like radiation found in Tokyo,” [RussiaToday] YouTube (uploaded 2011, August 17): http://www.youtube.com/watch?v=XNzDg4O9dkw