Marnie Fienberg is the co-founder of 2 for Seder, which encourages Jews to invite at least two non-Jews to their Passover celebrations as a way to combat anti-Semitism. Her mother-in-law, Joyce Fienberg, died during the shooting at Tree of Life synagogue on Oct. 27, 2018.

Nathan P. Devir is an associate professor of Jewish studies, religious studies and comparative literature at the University of Utah, where he also directs the Middle East Center and Middle East studies program.

Stosh Cotler is CEO of Bend the Arc: Jewish Action, a liberal Jewish organization that combats conservative policies. Arrange an interview through Elliot Levy.

Matthew Brooks is the chief executive officer of the Republican Jewish Coalition, a political organization working to strengthen ties between the Republican Party and American Jews.

Matthew E. Boxer is an assistant research professor of modern Jewish studies at Brandeis University, where he studies American Jewish life and identity.

Rabbi Jacob Blumenthal leads Shaare Torah, a synagogue in Gaithersburg, Md. In July 2019, he will become chief executive of the Rabbinical Assembly, an international association for conservative rabbis.

The Most Rev. Justin Welby is the archbishop of Canterbury, head of the Church of England. He has engaged a number of social issues since being installed in this role in March 2013, including poverty, climate change and medically assisted suicide.

Jason Tippetts is the widower of Kara Tippetts, who became a high-profile opponent of medically assisted suicide during her battle with cancer. He is the lead pastor of Westside Church in Colorado Springs, Colo. Contact him through this online form.