John Hyde Evans is a sociologist at the University of California, San Diego. He wrote Playing God?: Human Genetic Engineering and the Rationalization of Public Bioethical Debate and The History and Future of Bioethics: A Sociological View.

Michael M. Mendiola was associate professor of Christian ethics for the Graduate Theological Union in Berkeley, Calif. He wrote the article “Human Embryonic Stem Cells: Possible Approaches from a Catholic Perspective” for The Human Embryonic Stem Cell Debate (MIT Press, 2001). Mendiola passed away in 2008.

Dr. Irving Weissman is head of the stem cell research program at Stanford University in Palo Alto, Calif. He opposes an effort to repeal California’s law legalizing embryonic stem cell research.

Jane Maienschein is a professor of history and philosophy of science at Arizona State University in Tempe. She wrote Whose View of Life?: Embryos, Cloning, and Stem Cells (Harvard University Press, 2003).

Read a May 1991 Time magazine cover story about Scientology. The church took great exception to the article, which went on to receive the Gerald Loeb Award for distinguished business and financial journalism, the Worth Bingham Prize and the Conscience in Media Award from the American Society of Journalists and Authors. Article requires log-in and payment to access.

The Tampa Bay Times published a three-part series on the Church of Scientology in June 2009. Read the second installment, published June 22, 2009.

Read a Feb. 21, 2009, Tampa Bay Times story about two wrongful-death lawsuits dealing with Scientology’s stance on psychiatry. One has been settled; the other was just recently filed.

Operation Safety Net is a health care outreach program operated through the Pittsburgh Mercy Hospital System and Catholic Health East. It provides medical care to homeless people living on the streets of Pittsburgh and recognized as one of nation’s first, targeted, full-time street medicine programs. Dr. Jim Withers started the program in 1992.

James Serpell is a professor of humane ethics and animal welfare at the University of Pennsylvania’s school of veterinary medicine. He directs the Center for the Interaction of Animals and Society.