How American evangelicals became major players in the work of global charity. Throughout my teenage years, a photograph of a young Honduran boy was as much a fixture of my family’s stuccoed Southern California home as the old refrigerator on which it hung. I had never met this child, whose smiling face greeted me any time I wanted a glass of milk, but we weren’t entirely strangers either, having exchanged letters on occasion. Truth be told, there was little chance I could have located Honduras on a map. All I knew was that my pen pal was struggling to make…