In the second episode of Along the Green Line, reporter Matthew Cassel heads north to the occupied West Bank, visiting Tulkarm, a Palestinian city under siege by Israeli forces. Subscribe to The Guardian on YouTube ► http://bit.ly/subscribegdn Tens of thousands of residents have been forced from their homes, but just over the border in Israel, residents here are experiencing a very different reality. In this three-part series we're traveling along the 1949 Armistice line or ‘Green Line,’ - once