Carol Sanger teaches family law at Columbia University Law School in New York City.

Michael J. Klarman is a professor of law at Harvard University. He is an expert in constitutional law, constitutional theory and constitutional history.

Vikram Amar is a professor of law at the University of Illinois College of Law and an expert on constitutional law.

Michael C. Dorf is a professor at Columbia University Law School. He is an expert on constitutional law.

An Advocates for Youth report that looks at the period from 1998-2003.

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 poll released Aug. 3, 2005, by the Pew Research Center for the People & the Press found that 78 percent of Americans favor allowing public schools to provide students with birth control information while 76 percent believe schools should teach teenagers to abstain from sex until marriage. Solid majorities in every major religious […]

Robert Cochran Jr. is Louis D. Brandeis Professor of Law and director of the Institute on Law, Religion and Ethics at Pepperdine University in Malibu, Calif. He is the editor of Faith and Law: How Religious Traditions From Calvinism to Islam View American Law.

Cecilia Elena Rouse is a professor of economics and public affairs and dean of the Woodrow Wilson School of Public and International Affairs at Princeton University.