(NPR) – At the end of the drive, I meet David Ayares, who runs Revivicor Inc., a biotech company based in Blacksburg, Virginia. Ayares has invited me to be the first journalist to tour the company’s research farm, which is on the forefront of trying to realize a long-sought goal: using cloned farm animals to provide kidneys, hearts, livers and other organs to save thousands of people who need transplants. (Read More)