Many thanks for your thoughtful letter of March 23, 2007, regarding efforts to improve labor conditions in industry supply chains...Your letter contains a great deal of valuable information on which I will continue to reflect…We ought to remind ourselves that voluntary supply chain initiatives were invented not because they were viewed necessarily to be the best approach, but because “host” states either didn’t have adequate legislation in place or weren’t enforcing it. After a decade of experience we have come full circle to realize that we can’t get the job done without states, for only they have the capacity, at national and global levels, to bring relatively small voluntary initiatives to a scale where they can constitute systemic interventions that lead to sustainable change.