SecUnit doesn't say anything about that - though as time goes on, if Jack is looking closely, he might be able to see a glint of something metallic at the nape of its neck under its collar, the hint of strange seams along its singular untransformed hand. A hint about its nature, after that 'leaking' comment from earlier, and that suspicion of his.

And another hint, though a potentially stranger one; "Never heard of that planet," it says. "If this isn't it I don't know where we are either."