A 30 per cent drop in the iron ore price is causing concern among Australia's miners who have invested heavily in greater production facilities on the expectation of continued rising demand from China. The FT's Jamie Smyth reports from the mining town of Port Hedland in the Pilbara region of Western Australia.<br /><br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Subscribe to the Financial Times on YouTube; http://goo.gl/vUQx5k<br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes
