Superman is widely regarded as the ultimate symbol of hope in the DC Universe, standing for truth, justice, and the protection of the innocent. His immense power is matched by a strong moral code, and he usually goes to extraordinary lengths to avoid harming others, even when facing enemies capable of threatening the entire world. That reputation, however, does not mean every decision he has made deserves admiration. Across DC’s long publishing history, Superman has committed deeply troubling acts, sometimes under extreme pressure, sometimes through misguided judgment, and sometimes after losing sight of the principles he is expected to uphold....