A National Book Award and Pulitzer Prize winner, John Updike is the author of the “Rabbit” novels, whose protagonist, Harry Angstrom, is one of America’s most famous literary characters. Updike’s Terrorist is a caustic and empathic rendering of an alienated post-9/11 sensibility in the person of Ahmad Ashmawy, a high school student in the working class city of New Prospect, N.J.