[Ben knows the intangibles, the marks the experiences leave, but not the details themselves. He doesn't know what words will make it worse, what to watch out for, and he wants to know.

He wants to know how two sets of experiences can leave them sitting here, staring across at each other from behind two faces so different and so similar at the same time.]

I don't understand why they would imprison you for that. No, wait. Your mutation? [The killing is routine, familiar to him, but so is the fear of others for something different among them.]

I have been told that, as well. It makes sense. It is more difficult to put into action than to understand, though.