The U.S. Department of Education has guidelines, issued in 1998, for teaching religion in public schools.

Marshall Fitz is the director of immigration policy for the Center for American Progress (CAP), which is a progressive independent nonpartisan educational institute. Contact Fitz through the CAP communications director Crystal Patterson or through the email form on his CAP page.

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.

Read about Torie Bosch’s personal account of celebrating and recognizing Christmas as a secular holiday.

Read the opinion of Annie L. Gaylor, co-president of the Freedom From Religion Foundation, to remove Christmas as a federally recognized holiday and replace it with a more secular holiday.

Read a Dec. 21, 2000, Associated Press story posted by the Cincinnati Enquirer about a U.S. Court of Appeals ruling that Christmas can continue to be a legal holiday, as it has been since 1870, because it has a secular purpose.

Read a Feb. 17, 2013, New York Times article about the debate over religious federal holidays in the U.S.

A segment on the web site About.com looks at the legal questions surrounding making Good Friday a state holiday.