If I had to guess I'd say that 99% of the stuff that people share in a panic about changes to some TOS are no biggie. In this instance, one that someone shared on Facebook today seemed worth passing along.
The gist of it is that, unless you change a setting in order to opt-out, your status updates are going to be Googleable "soon"
Here's an independent bit of coverage on the announcement made back on December 7. Maybe I'm just late to the party but it sure flew completely under my radar.
http://www.readwriteweb.com/archives..._is_set_to.php
Opting out was fairly simple, although I had to click through the sequence a couple of times as it glitched (as FB often does for me) and either froze or went to a different section.
Go to Settings --> Privacy Settings --> Search --> then UN-CLICK the box that says 'Allow indexing'.