All over Europe, all over the world, men were spying. While ingovernment offices other men were tabulating the results of the spies'labours; thicknesses of armour-plating, elevation angles of guns,muzzles velocities, details of fire control mechanisms andrange-finders, fuse efficiencies, details of fortifications, positionsof ammunition stores, disposition of key factories, landmarks forbombers. The world was getting ready to go to war. For the cannon-makersand for the spies, business was good.