[Domini has]...reached an important and far-reaching agree­ment with Nucor, the largest steel producer in the United States. Nucor is the largest buyer of Brazilian pig iron, a key ingredient in the manufacture of steel. In a 2006 cover story, Bloomberg Markets magazine opened a window into the small camps that produce the charcoal used to make pig iron, exposing a world of slav­ery, inhuman working conditions and illegal deforestation...[T]he problem suppliers are generally unknown to Nucor, lying several tiers down their supply chain. But Nucor’s general counsel set the right tone when he said, “Any amount [of pig iron] that is sold with the use of slave labor is too much.” Nucor announced it would monitor the government’s “dirty list” of employers found to use slaves, and require its direct suppliers to certify that slaves were not used...