Walgreen Co. will pay $20 million to settle a federal lawsuit alleging widespread racial bias at America's largest drugstore chain under the terms of a proposed deal announced Thursday. The U.S. Equal Employment Opportunity Commission... alleg[ed] that Walgreen...discriminated against thousands of black workers in hiring and assignment decisions. The settlement deal still needs a judge's approval, but both the government and Walgreen have agreed to it...Walgreen Chief Executive Jeffrey A. Rein [said]..."We are pleased to reach a resolution that is consistent with our past and future diversity and equal opportunity objectives,"