What supply-side measures Mr. King had in mind he refused to say, although it is notable that the Treasury last year rejected his advice to underwrite a further recapitalization of the banking system to free up the supply of credit.

WSJ: Two Ways to Look at Sovereignty Issue

Because there currently is no recognized system to verify that the sources of minerals from the DRC are conflict free, efforts to secure supply chains have led to a de facto embargo of minerals from the region while such systems are being developed.

FORBES: How Enough Project and Global Witness Make Life Harder In Congo