Facebook are trying to cover up a major user data leak.
http://readwrite.com/2012/10/26/facebook-asked-blogger-who-purchased-user-data-to-keep-quiet

It seems the email addresses that were leaked were gathered by a rogue facebook application developer. Thats a good reason not to allow Facebook applications to have your email address, and possibly even to block the whole facebook application platform.

In order to stop Facebook application's getting hold of your email address, without your explicit permission, FB Purity has a feature that highlights when a Facebook application is requesting permission to access your email address, to bring it to your attention, by drawing a big red box around it, as with Facebook's default permissions request dialog its easy to miss such a request.

See the following article on how Facebook are eroding users privacy with the Application permissions dialog :  http://techcrunch.com/2012/08/25/5-design-tricks-facebook-uses-to-affect-your-privacy-decisions/ 
which is quite likely the reason the application developer managed to get so many email addresses.

And also this one that highlights how Facebooks privacy policy has evolved over time, to erode user's privacy rights:

Facebook's Eroding Privacy Policy: A Timeline
https://www.eff.org/deeplinks/2010/04/facebook-timeline
(The EFF should really update their article, as their timeline of events only goes up to 2010, but you get the general idea of whats going on anyway)

Of course, if anyones in any doubt as to whether Mark Zuckerberg cares about Facebook users privacy, you can be sure he doesnt, as the following article proves: http://www.wired.com/business/2010/04/report-facebook-ceo-mark-zuckerberg-doesnt-believe-in-privacy/

+Unthink Facebook +George Takei +Naked Security +Electronic Frontier Foundation 
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