"At first glance, Natalie Cavanaugh and Glenn Abbott hardly look like sisters. Even off-duty, Natalie dresses like a Boston cop, preferring practical clothes and unfussy, pinned-up hair. Her younger sister, Glenn, seems tailor-made for the spotlight, from her signature red mane to her camera-ready smile. Glenn has spent years cultivating her brand through her baking blog, and with the publication of her new book, that hard work seems about to pay...

Discusses the practical, political, psychological, and philosophical challenges of technological advances have changed the landscape of traditional notions of privacy.