Barack Obama has signed an executive order on cybersecurity aimed at boosting the defense of critical US infrastructure, while also avoiding the criticism over compromising civil liberties that its legislative predecessors suffered from. READ MORE: http://on.rt.com/nrhvr1<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/+RT<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.