News Middle East <br /><br />Siege squeezes Gaza entrepreneurs <br /><br />Business in the Gaza Strip continues to suffer because Israel is refusing to allow companies to import certain important materials.<br /><br />These restrictions have forced thousands of Palestinians to rely on the use of underground tunnels to smuggle the materials into the territory.<br /><br />Al Jazeera's Nicole Johnston reports from a chocolate factory in the coastal enclave that has suffered a 70 per cent decrease in business because of the siege.<br /><br />July 2, 2010