Open-pit mining explained

Posted at Feb 15 2013 11:52 AM | Updated as of Feb 15 2013 07:52 PM

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MANILA, Philippines - Mines and Geosciences Bureau Director Leo Jasareno explains what open-pit mining is and the need for tunnels in pumping out water after an incident in Semirara Mining's coal mine in Antique which left five dead and five still missing.

Failon Ngayon, February 15, 2013.