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.  

Michael S. Ariens is a professor of church and state for the school of law at St. Mary’s University in San Antonio, Texas. He wrote the essay “Religion in the Courtroom” for the book Religions of the World: A Comprehensive Encyclopedia of Beliefs and Practices (ABC-Clio, 2002).

Gregory Baylor is director of the Christian Legal Society and said outlawing sacramental tea would be the equivalent of banning the wine served at a Roman Catholic Mass.

Kelly Shackelford is president and CEO of First Liberty Institute, a Texas law firm that works to preserve religious freedom and argued in support of the Bladensburg cross before the Supreme Court.

The Homeless Emergency Assistance and Rapid Transition to Housing (HEARTH) Act of 2009 is the most recent re-authorization of the McKinney-Vento Homeless Assistance Act of 1987, the first and only federal law aimed directly at combating homelessness.

The Animals Voice is a nonprofit animal rights organization that publishes an online magazine of the same name. It is based in Chico, Calif. Contact through the website.

The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service dedicates a section of its Web site to animal welfare issues.

The HomeSchool Association of California publishes a newspaper and offers legislative and legal advocacy.

Michael L. Coulter is a professor of humanities and political science at Grove City College in Grove City, Pa. He is the author of “Home School Legal Defense Association” in the Encyclopedia of American Religion and Politics.