http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2011/12/19/BUFU1MD58T.DTL&type=printable
This was syndicated to sfgate, http://www.businessweek.com/magazine/guardians-of-the-apocalypse-12152011.html is the original which has an awesome Nick Bostrom based pixel art infographic.
The printed copy is even better. Check out the pullquote on the last page.
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2011/12/19/BUFU1MD58T.DTL&type=printable