We(*) don't think about it anymore, do we? There's something terribly sad about the fact that a race can become so used to death and death and death that it has to be nearby, or spectacular, for it to be a tragedy. To regain your perspective, read this excellent article in The Onion:
http://www.theonion.com/onion3521/millions_dead.html
--
sentience@pobox.com Eliezer S. Yudkowsky
http://pobox.com/~sentience/tmol-faq/meaningoflife.html
Running on BeOS Typing in Dvorak Programming with Patterns
Voting for Libertarians Heading for Singularity There Is A Better Way
* = Well, maybe you don't think about it. As a Singularitarian, I know
the statistics and I can snap my fingers in time to the planetary death rate.