Im sure a lot of you have seen this video before, there are actually quite a few versions of it, but I think its worth posting here. I think the subject matter is pretty interesting, and though some of it is alarmist in nature, it holds a lot of water here on the net. Plus, the technical presentation of the info is pretty cool too.

[youtube=http://www.youtube.com/watch?v=cL9Wu2kWwSY&hl=en&fs=1]