Private Eye
by Henry Kuttner and C. L. Moore
A jilted man plans murderous revenge while trying to avoid any behavior that would reveal
his plans to the government’s all-seeing technology that can reconstruct the past from
electromagnetic and sound waves.
— Michael Main
It was sensitive enough to pick up the “fingerprints” of light and sound waves
imprinted on matter, descramble and screen them, and reproduce the image of what had
happened.