would you expect? why now, though, really? why now? >> well, after she was outed in 2003, and she issued that written statement, in the years that followed people were writing about her in their books and she finally decided she w t wanted to own her own story. she saw things that were not true, and she felt that in order to find closure for herself she needed to put down in writing what she had experienced. when i asked her if she regretted the affair, she said it wasn't the affair she regretted. it was holding on to the secret because that just ate her up for so long. >> great of you to come over, meredith. i can't wait to see it tonight. meredith's entire exclusive interview airs on "rock center" with brian williams tonight at 9:00 p.m. eastern on nbc. if you've been following this story, a chilling phone call from the social worker who dropped josh powell's two boys off at his house just moments before the fire that killed them. more of that harrowing recording