Final answer:
The recent addition to ethical decision-making is the constructivist perspective, which emphasizes the importance of norms and alignment with those norms. It considers the influence of value judgments and international organizations on state behavior.
Step-by-step explanation:
The recent addition to ethical decision-making is the constructivist perspective. This perspective emphasizes the importance of norms and the tendency of individuals to align with those norms. It considers how state behavior can be influenced by the value judgments placed on certain countries or states, and how international organizations can establish rules or expectations to further pressure states to align their behavior with the rest of the world.