The congregation of St. Paul's Episcopal in New Orleans, hard-hit by Hurricane Katrina in 2005, is now helping handicapped children in Haiti, survivors of the earthquake there. "It was clear right away the connection between New Orleans and Haiti," says Rev. Scott Albergate.

Voodoo recognizes an invisible world of great spiritual power, according to Sallie Ann Glassman, a Voodoo priestess, community organizer, and founder of the New Orleans Healing Center.

Listen to excerpts from our 2007 interview about Hurricane Katrina with jazz great Terence Blanchard, who says "there has to be something for us to learn from this."

Jazz trumpeter and composer Terence Blanchard spoke with us on the third anniversary of Hurricane Katrina about his CD, "A Tale of God's Will: A Requiem for Katrina," and writing hopeful music about hopelessness.

Read the complete transcript of our 2007 interview with jazz musician Terence Blanchard about Katrina, New Orleans, and the spiritual roots of his music.

Watch more from New Orleans Roman Catholic Archbishop Gregory Aymond, Margaret Dubuisson of Catholic Charities of New Orleans, and Rev. John Dee Jeffries of the First Baptist Church of Chalmette on the spiritual toll of the Gulf Coast oil spill crisis.

Catholic Charities set up five relief centers in Louisiana fishing villages to respond to the oil spill catastrophe with financial assistance and spiritual support, says Margaret Dubuisson of Catholic Charities of the Archdiocese of New Orleans.

"We're already practicing tikkun olam--repairing the world--in our day-to-day lives," says Jonathan Graboies, a resident of Moishe House in New Orleans, "so in a way we're being Jewish even without being in the synagogue."

We have a story about two people in the vanguard of a historic grassroots movement that's brought hundreds of thousands of volunteers to the region. Its focus has shifted from Katrina's immediate aftermath to broader issues of social justice.

In D'Iberville, Mississippi, near Biloxi, almost three years after Hurricane Katrina, volunteers from around the country celebrated the rebuilding of nearly a thousand homes.