He’s known as “Dr. Miracle” because of his skill and his devotion to helping victims of gang rape during conflict in his country, the Democratic Republic of the Congo. For several years, the gynecologist Dr. Denis Mukwege has been mentioned as a contender for the Nobel Peace Prize. And this year, he has been awarded the prize, along with Nadia Murad, a member of the Yazidi minority in northern Iraq who was taken captive by ISIS members and held as a sex slave for three months before escaping from her captors. In 2016, at the age of 23, she was named the U.N.’s first Goodwill Ambassador for the Dignity of Survivors of Human Trafficking.