 In the twentieth century, Camus claims, murder has become “reasonable,” “theoretically defensible,” and justified by doctrine. People have grown accustomed to “logical crimes”—that is, mass death either planned or foreseen, and rationally justified. Thus Camus calls “logical crime” the central issue of the time, seeks to “examine meticulously the arguments by which it is justified” (R, 3), and sets out to explore how the twentieth century became a century of slaughter.