It makes good business sense for companies to actively pursue an ethical supply chain. Philanthropy...is not enough...[Many] executives assume that tracing labour conditions in their supply chains is futile and prohibitively costly. Yet if the Guardian can do it, the business community surely can – and must...[B]usinesses must actively be part of the solution...[and live] by the equivalent of the Hippocratic Oath – at least do no harm...Businesses in one sector can collaborate...[or] across sectors, like Microsoft, Ford, Delta Airlines, Hilton Hotels, Coca-Cola, and others do in the Global Business Coalition Against Human Trafficking...[These] businesses act...[because] they have tangible interests at stake. The first is reputational...A second interest lies with shareholders...Third, employees will be more active ambassadors...if they can be proud of [their company]... Finally...customers...will reward companies genuinely seeking to reduce [human trafficking]... [also refers to Patagonia, Walmart, ManpowerGroup]