You know people around the world are struggling. A homeless man holds a sign that reads, "Anything helps." A poor child lives in a slum swarming with flies. A refugee mother is on the brink of starvation. You ask yourself, "But what can I do about such big problems?" You're looking for long-term solutions. John D. Barry shares incredible, and often shocking, stories about working among the impoverished and unchurched in...