This is huge news if it pans out.
Their research, backup data, and logic looks pretty good.
It makes sense that an earlier collision (but smaller than the original earth -> moon collision) happened to kill the Premian species.
It is Bush's fault that the crater lies on a rift line.
This doesn't surprise me in the least. I have a feeling before it's all over we'll find all kinds of things buried under a mile of ice.....things that will answer a lot of questions.
I'm sure that Gore and RFKjr will explain to us how this was caused by those wascally wepublicans and will be again if they aren't voted out in 06