Millions of us turn to social networks like Facebook and Twitter to share our lives with friends and family. But what you might not know is that you could be giving away your personal data to governments. RT's Marina Portnaya explains, no privacy settings can bar the authorities' prying eyes.<br /><br />RT LIVE http://rt.com/on-air<br /><br />Subscribe to RT! http://www.youtube.com/subscription_center?add_user=RussiaToday<br /><br />Like us on Facebook http://www.facebook.com/RTnews<br />Follow us on Twitter http://twitter.com/RT_com<br />Follow us on Google+ http://plus.google.com/b/102728491539958529040<br /><br />RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 500 million YouTube views benchmark.