When bullets hit Agnes Kamara-Umunna's home in Monrovia, Liberia, she and her father hastily piled whatever they could carry into their car and drove toward the border, along with thousands of others. An army of children was approaching, under the leadership of Charles Taylor. It seemed like the end of the world. Slowly, they made their way to the safety of Sierra Leone. They were the lucky ones. After years of exile, with the fighting seemingly over,...