Gold traders in the eastern Congo district of Ituri have heard of the Dodd-Frank act, or 'Obama's law' as it's known here, but don't see why it's got anything to do with them, reports Reuters. The legislation, signed by President Barack Obama in 2010, puts the onus of proof on end-users. But while it has sent shockwaves through the global gold industry, the fractured and opaque nature of the gold supply chain means it has yet to have an impact where it counts - on the ground.