E.J. Graff is the author of What is Marriage For?: The Strange Social History of Our Most Intimate Institution (Beacon Press, 2000) and an advocate for same-sex marriage.

The full report by Mathematica Policy Research Inc. on the effectiveness of four abstinence-education programs. According to the study, released in April 2007, participants “were no more likely than control group youth to have abstained from sex and, among those who reported having had sex, they had similar numbers of sexual partners and had initiated […]

A January 2004 report from the Kaiser Family Foundation, National Public Radio and the John F. Kennedy School of Government, found that 15 percent of Americans want abstinence-only sex education taught in schools, and 46 percent want abstinence taught along with contraception. Only 7 percent said they did not think sex education should be taught […]

Evan Wolfson is a lawyer and executive director of Freedom to Marry. He argued the Boy Scout case before the Supreme Court, as well as the Hawaii marriage case.

Charles A. Cesaretti is executive director of the Center for Sexuality and Religion, which helps faith communities sexual spiritual health and justice. It is based in Wayne, Pa.

Lou Sheldon is chairman of the Traditional Values Coalition, a conservative group that wants a constitutional amendment that would ban same-sex marriage, ban same-sex unions and ban gays from receiving benefits of any such unions.

Beverly LaHaye is founder and chairman of the Concerned Women for America, a conservative group that opposes same-sex marriage.

Glenn Stanton is the director for Family Formation Studies at Focus on the Family in Colorado Springs.

Maggie Gallagher is president of the Institute for Marriage and Public Policy in Washington. D.C. and a co-author of The Case for Marriage.