I once visited an impoverished neighborhood of Santo Domingo in the Dominican Republic. Homes were made of corrugated iron, with electricity wires dangling live above them. There I had the privilege of interviewing families and hearing how churches were helping to combat unemployment, drug use, and crime.

In one alleyway I climbed a rickety ladder to a small room to interview a mother and her son. But just a moment later someone rushed up, saying, “We must leave now.” A machete-wielding gang leader was apparently gathering a mob to ambush us. We left quickly!

We visited a second neighborhood, but there we…