"Back in 2007, Princeton University's Uwe Reinhardt suggested to NPR that Wal-Mart could be 'taking aim at the entire health care system' by expanding its new discount drug program.... And in subsequent years, Wal-Mart did grow its health care footprint, from launching retail clinics based within its stores to advocating for national health reform. Considering its history -- as recently as 2005, Wal-Mart had little involvement in the health care market and was being pilloried for skimping on its own employees' benefits -- it's been a significant turnaround for the firm, and has positioned Wal-Mart as one of the leading disruptive innovators in health care."  MORE >>