Kenneth Magnuson is an associate professor of Christian ethics at the Southern Baptist Theological Seminary in Louisville, Ky. He is a member of the Evangelical Theological Society of America and the Center for Bioethics and Human Dignity. He was a participant in the 2006 First Things online symposium on torture.

John L. Jackson Jr. is the Richard Perry University Professor of Communication, Africana Studies and Anthropology in the Standing Faculty of the Annenberg School for Communication and the Standing Faculty of the School of Arts and Sciences at the University of Pennsylvania. He has researched the beliefs and practices of Black Hebrews.

The Carter Center in Atlanta is involved in human rights worldwide. Read the center’s May 14, 2004, publication “Human Rights Defenders on the Frontlines of Freedom: Protecting Human Rights in the Context of the War on Terror.”

Ferenc Szasz is an associate professor of history at the University of New Mexico and author of Religion in the Modern American West.

Read a Sept. 17, 2005, New York Times article about the spread of Christian and Jewish yoga.

Read an October 1989 letter to the bishops of the Catholic Church on the subject of Christian meditation written by then-Cardinal Joseph Ratzinger, now Pope Benedict XVI. In it, Ratzinger addresses yoga.

Read an article about the tensions between secular sports clubs and fitness centers that must pay taxes and their church counterparts (and sometimes competitors) that are tax-exempt.

Tufts University is a private university with campuses in Boston, Medford/Somerville & Grafton, Mass., and Talloires, France. It boasts a very large Jewish student population and was named one of the ten “most Jewish” universities by Reform Judaism magazine in 2008. Patrick Collins is the executive director of public relations.

Read a January 5, 2010 essay from The Tablet, an online magazine of Jewish culture, titled “Is Yoga Kosher?” It is about the struggle of a Modern Orthodox Jew to reconcile her yogic practice with her Judaism.