"We feel a responsibility to lead on some of the biggest global challenges of our time," said Wal-Mart CEO Mike Duke in a press release. "We are using the size, scale and strengths of our business to make a positive impact in these areas and the Walmart Foundation plays a major strategic role in making this model work. Kathleen has a personal passion for making a difference on social issues and the business expertise to help successfully develop and implement real, long-term solutions."