Italian investigators have discovered a safety deposit box belonging to Roberto Calvi some 20 years after "God's banker" was found hanging from scaffolding under Blackfriars Bridge in London. The safety deposit box, held at a Milan branch of the Banco Ambrosiano of which Calvi was chairman, reportedly contained a builder's brick, newspaper articles dating from the summer of 1981 and documents which police hope will help them to solve the puzzle of the banker's death. One mystery they will seek to clarify is how the bank safe remained unnoticed for all these years. It was registered in the names of...