Carol Peck is senior director of family services at Catholic Charities USA, where she works on human trafficking issues and policy.

Claire Renzetti is professor of sociology and women’s studies at the University of Kentucky, where she studies human trafficking and is an expert on the faith-based response to the issue. She can also address the evangelical response to the issue.

Melissa Farley is a clinical and research psychologist and directs the San Francisco-based Prostitution Research and Education project, which works to abolish prostitution and help prostitutes. She edited Prostitution, Trafficking and Traumatic Stress.

Kay Buck is executive director of the Coalition to Abolish Slavery & Trafficking, a nonprofit that seeks to serve victims of trafficking. It is based in Los Angeles.

Melissa Broudo is a staff attorney at the Sex Workers Project at the Urban Justice Center in New York, where she focuses on the legal concerns, safety and rights of sex workers.

Kevin Bales is a sociologist and co-founder of Free the Slaves, a nonprofit and sister organization to the U.S. Anti-Slavery International. He has written articles about human trafficking, stating that it could be eliminated if governments would enforce their own anti-slavery laws, spend money on the effort and increase public awareness about the problem.

Luis CdeBaca is ambassador-at-large for the State Department’s Office to Monitor and Combat Trafficking in Persons. He is a former prosecutor and received an award for his work as lead trial counsel in the largest slavery prosecution in U.S. history, in a case involving a garment factory in American Samoa.

Read a Dec. 15, 2005, Washington Post article about a focus on johns and pimps in the battle against prostitution.

Read a May 22, 2013, article in The Guardian about the Catholic Church’s fight against proposed budget cuts in the United Kingdom’s legal aid system. The church says the cuts would limit assistance for victims of human trafficking.