Take the format of a spy thriller, shape it around real-life incidents involving international terrorism, leaven it with dark, dry humor, toss in a love rectangle, give everybody a gun, and let everything play out in the outer reaches of upstate New York — there you have an idea of Brock Clarke’s new novel, The Happiest People in the World.Who are “the happiest people in the world”? Theoretically, it’s all the people who live in Denmark, the country that gave the world Hans Christian Andersen fairy tales and the open-face sandwich. But Denmark is also where some political cartoonists got into very unhappy trouble when they attempted to depict Muhammad in their drawings, which prompted protests, arson, and even assassination attempts.Imagine, then, that one of those cartoonists, given protection through the CIA, is relocated to a small town in upstate New York where he is given a job as a high school guidance counselor. Once there, he manages to fall in love with the wife of the high school principal, who himself is trying to get over the effects of a misguided love affair with the very CIA agent who sent the cartoonist to him. Imagine also that virtually every other person in this tiny town is a CIA operative.The result is a darkly funny tale of paranoia and the all-American obsession with security and the conspiracies that threaten it, written in a tone that is simultaneously filled with wonder and anger in almost equal parts.