Congo 's ` ` conflict tolerance '' used in cell phones , other electronics , co - authors say . Financial regulation that requires makers of electronics to audit supply chains . We then crossed through army and rebel checkpoints , where smugglers paid off the commanders in U.S. dollars , and then witnessed how these same minerals were packed into barrels with Congolese flags on them and loaded onto planes and flown out of the country . Co - authors : Consumers should trust companies to make products conflict - free . They say Obama administration should work with the Congo to develop legitimate mining .
Congo 's ` ` conflict tolerance '' used in cell phones , other electronics , co - authors say . Financial regulation that requires makers of electronics to audit supply chains . Co - authors : Consumers should trust companies to make products conflict - free . They say Obama administration should work with the Congo to develop legitimate mining .