Rosow, Christopher. Ben Porter series #2

"Credited with successfully stopping a terror threat in 2017, FBI staffer Ben Porter has been promoted to Special Agent. But, within days of receiving his credentials and weapon, the tables are turned, and Ben finds himself--and his family--as a target. Ben must overcome his inexperienced biases to understand the motivation of his foes, in order to not only secure his own safety, but also to intercept a nefarious, invisible, and unprecedented new weapon of terror."--Provided by publisher