In Need to Know by Karen Cleveland, CIA analyst CIA analyst Vivian Miller Vivian and her team is working to crack a system used Russian sleeper agents used to keep in contact.  As she navigates through the hacked computer of a midlevel Russian handler, she’s thrilled to discover photographs of his agents—until she realizes that one of them is none other than her husband (gasp).  Miller’s loyalties to country and family hang in the balance as the drama unfolds.  Author Cleveland used to work for the agency, which shows in the “impeccable details” of tradecraft, but she also maintains a “pulse-hammering pace,”   This is catnip for fans of Homeland, The Americans, and the novels by Chris Pavone (Ex-Pats),  Olin Steinhauer (The Tourist), and the daddy, John Le Carre’ (Legacy of Spies)