Frankie Trull is founder and president of the Foundation for Biomedical Research, an organization that promotes the responsible use of animal testing in scientific labs.

David E. Wilkins is co-author of Uneven Ground: American Indian Sovereignty and Federal Law (University of Oklahoma Press, 2001) and associate professor of American Indian studies, political science and law at the University of Minnesota, Twin Cities.

James Hitchcock is a professor emeritus of history at St. Louis University. He wrote the book The Supreme Court and Religion in American Life, Vol. 2: From “Higher Law” to “Sectarian Scruples.”

Betsy Nessen Merrill is director of development and communications for AltWeb, the Alternatives to Animal Testing website, a project of the Johns Hopkins Center for Alternatives to Animal Testing in Baltimore.

Dr. Michael Greger is a physician and director of public health and animal agriculture in the farm animal welfare division of the Humane Society of the United States. He is an expert on the public-health implications of using antibiotics and growth hormones in livestock and other food-safety issues.

Alan Goldberg is a professor of environmental health sciences and director of the Johns Hopkins Center for Alternatives to Animal Testing. The center works with scientists to find new methods to replace laboratory animals in experiments, reduce the number of animals tested and refine necessary tests to eliminate pain and distress. It is based in Baltimore.

Davison M. Douglas is director of the Election Law Program at the Marshall-Wythe School of Law at the College of William and Mary in Williamsburg, Va. He wrote the essay “‘Christian Nation’ as a Concept in Supreme Court Jurisprudence” for Religion and American Law: An Encyclopedia.

Dr. Larry Carbone is a veterinarian at the University of California, San Francisco. He is the author of What Animals Want: Expertise and Advocacy in Laboratory Animal Welfare Policy.

The Rev. Lewis V. Baldwin is a professor emeritus of religious studies at Vanderbilt University in Nashville, Tenn. He edited the book The Legacy of Martin Luther King Jr.: The Boundaries of Law, Politics and Religion.