. >> from libya to iraq, syria, timor, sri lanka, her stories collected in a new book "on the frontline sister wrote the book and joins me now. this is hard for people, even people like myself who did not know your incredible great sister to watch, but for you it must be immeasurably more painful. i'm so sorry for this loss. she was one-of-a-kind, unique in her generation. >> she just was so inspiring. beyond courageous. what i remember about marie and what was so unique about her was her dedication. she remained absolutely dedicated to bring out these issues and to bear witness, as she said, to the kinds of atrocities your last guest was talking about. she was killed, in fact, covering the slaughter in homes where there was a hospital targeted and attacked. her career also -- as her career developed, the targeting of journalists has become incredibly pronounced. it's such a dangerous job for them all to do. >> you know, she was so singular in her impact. growing up did she also know she wanted to do this? what were your concerns, family concerns about the danger she was facing? >> i'll