 But this is not a story about Marine Le Pen or Donald J. Trump or any of the other populist powerhouses who have emerged in Europe and the United States in recent years. Spin the camera toward the furious crowd. There's the real story. It's not the messenger that drives this movement. It's the fears, often, if not always, justified of ordinary people. Fears of lost jobs, surging waves of strangers, vanishing national identities, and the incomprehensible public violence associated with terrorism.