Pope Leo XIV has issued a powerful warning against the death penalty, raising the possibility of another clash with US President Donald Trump. On the World Day Against the Death Penalty, the Pope declared that capital punishment attacks the “inviolability and dignity” of the human person, arguing that justice can be served without taking a life. His remarks come amid growing controversy over Trump's approval of the firing squad execution of Army Major Nidal Malik Hasan, convicted in the 2009 Fort Hood shooting that killed 13 people and injured dozens more. Trump has also confirmed approving Hasan's execution, while the prospect of a public livestream has sparked fresh questions about the use of executions as a spectacle.