Between January 1980 and February 2015, 4,444 people made allegations of child sexual abuse that related to more than 1,000 institutions.

Barbara Blaine said her decision to leave the Survivors Network of those Abused by Priests had nothing to do with the legal action.

"The church is in a different space," says Archbishop Martin. "We must be more invitational, using a ministry of presence, gently explaining the message of the church and inviting people in."

Though clearly a commercial venture, Lust nonetheless makes sad reading and raises some questions.

The cardinal already serves as president of the Pontifical Commission for the Protection of Minors.

The New York archdiocese's program lets people take claims to a noted outside mediator while keeping painful details private.