IAEA last update

Here are excerpts:

"The concern about the spent fuel pools at Fukushima Daiichi is that the capability to cool the pools has been compromised. Elevated radiation measurements at the site may be partially of the result of uncovered or overheated spent fuel."

"White smoke was reported seen emanating from Unit 2 on 21 March at 9:22 UTC. Grayish smoke was reported seen emanating from unit 3 at 6:55 on 21 March, and this was reported to have "died down" two hours later. All workers at Units 1 through 4 evacuated after the smoke at Unit 3 was seen. The IAEA is seeking further information at this time on the status of workers at the site."
For the full press release see: IAEA