Remember that Einstein line that if the honeybee disappeared, mankind would have only four years to live? Remember that they are, in fact, disappearing? They start disappearing in 2007, vanish entirely in 2008. Add four years and that takes us to... *gulp*
Also, in 2012,
THIS turns up again. Toutatis 4179, it's a planet killer. Narrowly missed us in 2004, it'll miss us comfortably next year but the erratic orbit (it pretty much tumbles through space) makes it difficult to predict after that and if it hits us in 2012 or makes a close enough pass, it's game over.