Probably because you can have universe with out a deity, we do in this universe. Evolution can give you hope. I do agree that we can't live in ignorance, but thinking about god only encourages ignorance.
In order to reverse this modification, it means that Facebook has retained a copy of your original contact list. Most likely FB has numerous timestamped versions of their users contact lists. For most professionals it is standing operating procedure to take backups before doing any modifications. However while that tidbit is probably not surprising to slashdotters, it may come as a surprise to the average Facebooker how much information FB is collecting over time.
As the victim of several home burglaries. The sign doesn't matter. The glass break detector that sounds an ear piercing alarm doesn't matter. Thieves smash and grab, they know that security and/or police response time gives them enough time to grab something they can sell at the flea market or a pawn shop.
Outside of sitting at home with a shot gun, your best defense is what the original poster is trying to do. Set up an automated and secure way way of video/photographing a potential intruder and getting those files out in the cloud somewhere.
I thought about trying to replicate the experiment but ran into a couple of snafu's.
1. The comparison was between IE9 and Firefox 4 (other browsers as well, but Firefox is the one I typically use).
2. The current version of Firefox is 6.0 -- 6.0 might not have been available at the original time of the study but 5 was. I'd prefer to test the latest and greatest, so it should be a comparison between IE9 and Firefox 6.
3. Microsoft won't let me install IE9. Apparently I would have to upgrade to Windows 7 in order to run their latest version of their web browser.
Guess I can't conduct the test.
The jury summons I received last week had the option of responding via ejuror.co.clark.nv.us. I attempted to login and was denied access. The error message indicated that neither my social security nor birthdate matched what was in the system. However when I called in and eventually got access to a live person, both of those details were correct in the system. Color me not impressed.
Link to Original Source