WITH so much at stake, Charles Dennison should not have been careless. An inventor cannot afford carelessness, particularly when his invention is extremely valuable and obviously patentable. There are too many grasping hands ready to seize what belongs to someone else, too many men who feast upon the creativity of the innocent. A touch of paranoia would have served Dennison well; but he was lacking in that vital characteristic of inventors. And he didn't even realize the full extent of his carelessness until a bullet, fired from a silenced weapon, chipped a granite wall not three inches from his head
