By Tim Shriver Several weeks ago, I wrote about a young girl named Amelia Rivera who was denied consideration for a kidney transplant at the Children’s Hospital of Philadelphia because she was, according to her doctors, “mentally retarded.” Amelia is now in the process of being considered again for a transplant. Our lesson is that we cannot let Amelia’s story be an isolated call to arms. We must continue to seek change and advocate for the dignity of every human life.