[The anger isn't lost on him. As far as Barnaby is concerned, Hiro has every right to feel angry. No matter how one tries to explain it, he's still the one who bears the burden of his brother's death.

Barnaby's tentative assessment of Tadashi is that he's someone who needs to feel needed, someone who's quick to put others before himself at the expense of loved ones -- and also possibly the type who needs certain things spelled out for him in no uncertain terms before they sink in. If all of that is true, he could see how Tadashi might walk right into an untimely demise without fully comprehending what that means for Hiro.

At the end of the day, though, Barnaby doesn't know Tadashi nearly as well as Hiro, and he's not about to contradict the boy over something he himself might not fully understand. Instead, his voice is quiet and somber when he answers.]

...I see. It makes sense to assume he'll get swept up in the moment and put himself into danger again, then. [A pause.] Since you've decided the best course is to follow him into the thick of things, have you thought about what you'll do in order to avoid a repeat of what happened Friday?