This probably wasn't the best time, but Iron Man offered a hand in greeting to alleged-Ben then clamped an icy glove around his cheek to turn his head and project into his ear. "Are you certain there's no one else?" he asked, though even through the Iron Man's inhumanly minor tonal fluctuation he sounded as though he wasn't about to believe the word of a man who had been trapped in his office for weeks. This guy would probably do anything to get out of here fast; he certainly looked on the edge of stability when he glanced at Noriko. Iron Man wasn't about to take the slimmest chance that he might leave a healthy innocent in that building to contend with whatever was charging up the stairwell. On the other hand, that would be risking two healthy bodies that he knew for a fact were real and needed to get off of this roof. Tony swallowed, searching around his feet and trying to sort out the information noise to find uninfected heat signatures, but there was too much. What would Cap do?