Anger over the policies of the European central bank has marred the opening day of the institution's new headquarters in Frankfurt. Violence broke out as the anti-austerity Blockupy Network marched through the city, torching police cars in the process. RT's Peter Oliver has more.br br LIVE UPDATES: br br RT LIVE br Subscribe to RT! br Like us on Facebook Follow us on Twitter Follow us on Instagram Follow us on Google+ Listen to us on Soundcloud: br RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.