He takes careful note of the way he uses 'kidnapped' in past tense. Knowing Naruto-kun, there was only one potential target that the other would be upset that he was kidnapped -- Sasuke-kun. If it were in the past tense, that would mean their attempt to lure him succeeded. Which meant that in relation to his own self, this Naruto-kun was from a further point in time. Fascinating, really.

All that is decided in an instant as he doesn't comment on the setting up of a lab, not yet knowledgeable enough to comment. Instead, he lets his eyes widen with interest. "Uchiha Itachi... is it? This is not an opportunity that should be wasted... if I may suggest, Orochimaru-sama."