Oprah Winfrey caught in middle over sex abuse claims at African school. In 2007 a shocking report hit the press that an administrator at Oprah Winfrey's South African school for girls had covered up sex abuse that allegedly happened to some of the girls at the school. Oprah Winfrey made a public apology on the school's behalf and slammed the school's headmistress, but now Oprah may get sued for defamation, as the court date's been set.