Commodity prices in the US have fallen as demand for metals like copper has plummeted due to the global recession. In the case of copper, its price has more than halved in the last nine months.
As a result, jobs have been rapidly disappearing in US communities that depend heavily on metal production.
Al Jazeera's Tom Ackerman visited one mining town in the western US state of Arizona that has become a casualty of the collapse of copper.
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