This whole series is excellent! Joe Pickett and his friend Nate Romanowski are terrific characters. I like these books because they are about people who lead very different lives from mine (I am sure our political views are very different), and I really like and respect them. The plots are clever and interesting, and the characters are engaging and moral. Terrorism has been a factor in prior books as well. I recommend this whole series, read in order, as the characters keep developing.