Pope Leo XIV made an international delegation of authors feel that writers are useful during an audience Wednesday marking the 100th anniversary of the founding of Vatican publisher Libreria Editrice Vataicnaa (LEV), Italo-Somali novelist Igiaba Scego told ANSA after their encounter with the American pontiff.     "Pope Leo made us feel that writers are very useful. Fiction is often marginalized, and yet, precisely because we live in a world of artificial intelligence and unbridled capitalism,