Peace activist and cofounder of the Enough Project, John Prendergast is known as a champion of human rights in Africa. But the not-so-public face of J.P. is the life he's led as a Big Brother to Michael Mattocks. As a curious, driven, and emotionally wounded twenty-year-old, J.P. made the life-changing decision to form a "Big Brother/Little Brother" relationship with then seven-year-old Michael, who was living out of plastic bags and drifting from...