Only on the "CBS This Morning" podcast, author Kate Quinn discusses her latest work of historical fiction - "The Huntress." Quinn explains how uncovering the tale of woman living in the United States in the 1970s who was discovered to be a Nazi criminal provided inspiration for the book. The book takes readers along as a Brit, a Russian and two Americans hunt down a female Nazi officer living incognito in the United States after World War II. Talking with CBS News correspondent Nikki Battiste, the self-describe history buff also explains how a band of female Soviet bombers, known as the Night Witches, were instrumental in the war efforts and were a great resource for the book.