Hi Gang!! What a wonderful segment on 60 minutes regarding pig cells and how Jim could walk without assistance and talk without slurring. Even though there are still some complications, I say anything that helps and prolongs the life of a PWP is worth it. My husband had a mitral valve replaced from a pig's valve and lived a reasonable healthy life for 4 more years. He ultimately died from something else, but he was given 4 more productive years. We should all do everything we can to promote these tests and hope that somehow someway it will help someone to live a more productive life for a few years longer. Jo Ann