Christine Caine and her husband, Nick, are Christian evangelists and founders of the global anti-trafficking organization known as the A21 Campaign. She has written several books and speaks passionately on the subject of human trafficking. The Caines live in Sydney, Australia.

Katie Conway is an immigration and refugee policy analyst for the Episcopal Church in its Office of Government Relations in Washington, D.C. She can discuss the church’s work in the crisis involving unaccompanied children migrants.

Nancy Springer is the assistant rector at St. Alban’s Episcopal Day School, and is the former assistant rector of St. John’s Episcopal Church in McAllen, Texas. In her former position, she and her congregation worked with other border churches and government agencies to help unaccompanied children and other migrants in U.S. custody.

The Rev. Susan Copley is the rector of Christ Episcopal Church in Tarrytown, N.Y. She and members of her congregation visit unaccompanied migrant minors in U.S. custody at a nearby transitional home.

Greg Wark is the co-founder of Stop Child Trafficking Now, a countertrafficking organization that has teamed up with retired Navy SEALS to collect evidence against traffickers and to raise awareness about child sex trafficking. The organization works with churches around the country.

Minerva G. Carcano is bishop of the Phoenix Episcopal Area, Desert Southwest Conference of the United Methodist Church, which is based in Pasadena, Calif. She is spokeswoman for the Council of Bishops on the issue of immigration.

Ferdinando Sardella is an assistant professor in the history of religions at The University of Stockholm in Stockholm, Sweden. He has been a fellow at the Oxford Centre for Hindu Studies and specializes in contemporary Hinduism, especially in South Asia. He speaks Italian, Swedish and English.

Gavin Flood is the academic director of the Oxford Centre for Hindu Studies in Oxford, England. He specializes in the religions of South Asia and lectures on Hinduism.

Vijay Singal is the secretary of the Hindu Council of Australia in Homebush, New South Wales. In 2012, Hinduism became the fastest-growing religion in Australia, largely due to the number of Indian and Sri Lankan immigrants coming to the continent. He can discuss the diversity of Hinduism in Australia.