Seeking an Ethical Option to Embryonic Stem Cell Research REV. THOMAS BERG There might be an ethically acceptable alternative for obtaining embryonic stem cells, says a bioethicist. Legionary of Christ Father Thomas Berg, executive director of the Westchester Institute, a Catholic ethics think tank located in suburban New York, sees hope for a process known as altered nuclear transfer. He gave an overview of the status of stem cell research in this interview with ZENIT.Q: What is the ethical problem with embryonic stem cell research? Father Berg: The problem is that the methods currently used to obtain these cells...