"Sigh, you really are a disappointment. How can you be so stupid?" The Thinker couldn't help but sigh deeply as he continued, "Just look at your brother. Can't you see his expression? Even if Watcher is grabbing ahold of his neck, he's not feeling anything at all as he remains calm."
"And also, look at Watcher's eyes, can't you tell that she's doing it not knowing he is your brother? If my guess is correct, Watcher learned that your brother knew something about the organization that he shouldn't have. I guess it is about him knowing who you are. That's why she resorted to such an action to interrogate your brother."