look, i highly doubt disaster on 2012 will occur, because in 1998 the world was going to end, and we are still here. in 2000 they said the world will end, we're still here. Why do we think the world will end in 2012? Sure, the Mayans were smart people, but just because their Calendar ends December 21st 2012 doesn't mean they are smart enough to make the world's fate.
Sure Nostradamus said something about the world ending, but hell he had comparisons to terrorism and other stuff which i think is just coincidence and i bet 'ol Nostra didn't see WTC coming, which in my opinion is when 'The World Ended', and we are still here