Jeffrey S. Passel is a senior demographer for the Pew Hispanic Center, which has conducted research on Latino immigration patterns and Hispanic attitudes toward immigration policy.

Tony Campolo is a prominent evangelical pastor who helps lead Red Letter Christians, a progressive Christian movement aimed at building a more just society. He is also an author and a professor emeritus at Eastern University in St. Davids, Pennsylvania. Campolo served as a spiritual adviser to President Bill Clinton.

Paul F. Waldau works at the intersection of animal studies, ethics, religion, law and cultural studies. He is an associate professor and lead faculty member for the anthrozoology graduate program at Canisius College in Buffalo, N.Y., as well as the president of the Religion and Animals Institute.

Gayle Woloschak is a molecular biologist and a professor of radiology at Northwestern University in Evanston, Ill. She is director of “The Epic of Creation,” a lecture series that approaches the origins of the Earth through both scientific and religious perspectives, at the Zygon Center for Religion and Science at the Lutheran School of Theology in Chicago.

The National Science Teachers Association has made an organizational statement that recommends “emphasizing” the theory of evolution in the classroom.

The Discovery Institute describes its mission as “to make a positive vision of the future practical.” It is one of the main proponents of intelligent-design theory in education.

Jay D. Wexler is a professor of law at Boston University School of Law, where he teaches law and religion.

The Acton Institute for the Study of Religion and Liberty promotes a free and virtuous society characterized by individual liberty and sustained by religious principles. The institute is ecumenical and defines itself as conservative. It is based in Grand Rapids, Mich. The Rev. Robert A. Sirico is president. Contact John Couretas, director of communications.    

The J.M. Dawson Institute of Church-State Studies at Baylor University in Waco, Texas, is devoted to research in the broad area of religion, politics and society and committed to the separation of church and state and the advancement of religious liberty around the world.