Although no human lifeguard saw LeRo drowning, 12 large machine eyes deep under the water were watching the whole incident relaying the images to a central computer. Just nine months earlier, a modern electronic surveillance system called Poseidon had been installed. Poseidon covers a pool's entire swimming area, and is able to tell when swimmers are not moving the way they are supposed to. When the computer detects a problem, it instantly activates an alarm to alert lifeguards and displays the exact location of the incident on a monitor. Just 16 seconds after Poseidon noticed LeRoy sinking, the lifeguards pulled him from the pool and gave him CPR.4 He started breathing again, and after one night in the hospital was released with no permanent damage. Poseidon had saved his life