Dramatic video emerged on Friday of a British shopkeeper fending off an attack by a knife-wielding robber who held the blade to his assistant's throat. The attack, which occurred in Dagenham, east London, in October, was captured on CCTV footage and released by the Metropolitan Police.<br /><br />RT on Twitter: http://twitter.com/RT_com <br />RT on Facebook: http://www.facebook.com/RTnews
