In 1957, Ghana declared its independence from colonial rule, and a new leader named Kwame Nkrumah rose to take the helm. Jean Allman, professor of history and director of the Center for the Humanities at Washington University in St. Louis, has been studying the surprising networks that formed around Nkrumah, and in her research, she's discovered documents never meant for her eyes. She raises questions about the morality of the archival process and reveals how the NSA may change the future of history research.