'A gripping, Kafkaesque foray into an all-too-plausible future' JENNIFER EGAN'Extraordinary' RUMAAN ALAM'Absolutely unputdownable' SANDRA NEWMANSara is returning home from a conference abroad when agents from the Risk Assessment Administration pull her aside at the airport. Using data from her dreams, their algorithm has determined that she is at imminent risk of harming her husband. For his safet...