not a lawyer and suggest get a one<p>Here are torought details about Facebook case:
<a href="http://europe-v-facebook.org/EN/Complaints/Model_Contracts/model_contracts.html" rel="nofollow">http://europe-v-facebook.org/EN/Complaints/Model_Contracts/m...</a>
Have you found a flaw in their privacy policy like an analytics company not mentioned or have been personally effected in some obvious shape or form? If the first there's probably a government entity you can report them too and they can make the final call. tl;dr - doing a McHardy (linux GPL troll) isn't looked upon favorably by anyone.