'The Guardian Of Mercy' And How A Renaissance Painting Has Changed Lives

Our books commentator, Sharon Feldt of Sulphur Springs, discusses The Guardian of Mercy, by Terence Ward. The non-fiction book describes how a long-obscure painting, "The Seven Acts of Mercy" by Michelangelo Merisi da Caravaggio, finally became famous thanks to the devotion of a caretaker in the Naples church where it is displayed.