The global mineral trade can be ugly. Think children skipping school to dig barefoot with picks and shovels for gold or other precious ore. Picture warlords and army officers using guns to traffic minerals on the black market. Think Democratic Republic of Congo.

Or perhaps, consider the multi-billion dollar corporations that source many of the precious metals they use to build your mobile phone or your laptop from under regulated and often illegal mines. U.S. Congress began thinking about this in 2010 when it passed a first-of-its-kind law aimed at curbing the trade of certain “conflict minerals” in the Democratic Republic of Congo—Africa’s second largest country, whose eastern region has been ravaged by mineral-fueled violence for decades, killing more people than any other conflict since World War II.

Covering Business spoke with Michael Kavanagh, a veteran Bloomberg reporter in Congo who has covered the mineral trade there for more than a decade, about what journalists get wrong and how they can do a better job of covering this complex and divisive subject.

Read the article at Columbia University’s Covering Business blog.