[remember how the microbots were just raising up? they're flexing more and more as Hiro goes on, and Callaghan's expression is darkening, until he finally shoves himself to his feet, throwing out a hand to the side] Don't lie to me! I haven't spent the last week barely able to sleep because a few hours after I'm in one place, there's that thing coming after me!

[and then something clicks. occam's razor. if Hiro didn't program it to attack- and based on everything else that's happened-]

Has another thing you've 'improved upon' gone rogue, then? Is that what you're telling me?

[he may not be making a move towards Hiro, but those writhing pieces of metal? they're pulling in tight, as though to form some sort of armor or shield to protect him. a warped sort of chainmail, perhaps.]