Nyibol Mathiang Deng, 27, and her child receive energy biscuits from aid workers after arriving at the South Sudan border point in Majok Yinthiou. Photo by Peter Caton from Action Against Hunger, used with permission.By Dr. Charles E. Owubah Nyibol Mathiang Deng was six months pregnant when armed men stormed Muglad, the Sudanese village where…