That source you cite should be the last place one should look at for information. The Government and the Nuke have been caught in lie after lie and now all the Japanese know it. Your taking the "we need to keep our jobs and lie to the USA people" pro-nuke position because you don't know how to find unbiased information.
Do you have an argument for this source too? http://fairewinds.com/content/fukushima-daiichi-truth-and-future
I personally do not believe the cooling pool will collapse, but it is likely considering all else that has happened already. Oh, and if you want to quote a rational source for an answer to # 4, how about using CNN?
The Mohonk Mountain House and the Mohonk Preserve have done a great job protecting the environment thus far, but ... it's all down hill from here http://youtu.be/9AU8fMo8v4k.