I worked at Three Mike Island inspecting a steam generator during a refueling outage. A robot arm operated by a person ran a sensor down each pipe to inspect it

I worked at Three Mike Island inspecting a steam generator during a refueling outage. A robot arm operated by a person ran a sensor down each pipe to inspect its integrity. After completion a random set of pipes were chosen for verification. If even one pipe in the verification set differed from its original scan, the entire steam generator had to be reinspected. We had a huge incentive to get it right. Counting ballots should be just as verifiable and accurate.