[He frowned around the mouthful that he was chewing, and he had taken more than his share of hits for someone else, made calls that he had learned to let go for his own sanity. He'd been a punk and then a soldier, and he knew how to lay down on the wire so everyone else could crawl over. He wasn't going to ask someone to do something he himself wasn't willing to do.

He somehow managed to swallow, but it tasted horrible and his appetite had fled.]

How do you know what the algorithm would have wiped out? It tracked people with DNA. If you had something that could tell you that Hitler was going to murder so many people and start a second world war before he crawled out from between his mother's legs, would you want him dead before he wiped out good people in the way he did? Death camps? Bullets to the brain? Good men fighting other good men.