What is one responsibility that is only for United States citizens?

Serving on a jury is a responsibility that is uniquely reserved for United States citizens. This civic duty is a critical component of the legal system, as it ensures that a peer group of citizens evaluates evidence and determines the outcome of legal cases. The Constitution emphasizes the importance of a trial by an impartial jury, and this jury must be composed of individuals who have the legal status of citizens, thereby helping uphold the rights and responsibilities afforded by citizenship.

While paying taxes, obeying traffic laws, and registering to vote are important responsibilities for both citizens and non-citizens in various contexts, serving on a jury is specifically designated to citizens, highlighting the role of civic engagement and participation in the nation's judicial processes.