Last week saw one of the noblest acts of human courage in modern times. Yet it has been given far less attention than it should have been.We often hear it said of soldiers and others that they ‘gave their lives’ in battle. This is true in a way, though many actual soldiers will smile at the expression and mutter that they probably did not have much choice in the matter. But the French police of ficer, Arnaud Beltrame, consciously and deliberately did give his life to save another. When the drug abuser, petty crook and jailbird Redouane Lakdim burst into...