Reading what?

[He shakes his head, watching Verstael pace and holding back the urge to grab the man and shake him.]

It's not a guess! I saw them with my own eyes. They were floating in tanks. Most of them were already turning. You needed them to not have a sense of self - that's from your own notes! There were termination reports! You can't tell me millions of clones chose that life. It would be kinder if they didn't exist at all.