Sarah Murnaghan, the 10-year-old Pennsylvania cystic fibrosis patient who's been at the center of the debate over organ transplant policy, underwent a lung transplant yesterday, receiving adult lungs and a positive prognosis from her doctors.  Earlier this week, the national policy governing transplants was given a one-year change, allowing children under age 12 to be placed on priority lists to receive transplants of adult organs.

CNN reports on Murnaghan's surgery: