What's even more curious is that he sent Rocco and Neri out of the room. By this point they were no longer suspected of being traitors, and they had to have known about the Roth business, and even about Fredo's treachery -- after all it was Michael who later gave Neri the signal that Fredo was to be killed. I could see Tom meeting Michael one on one to give him hte news about Kay, but it was Michael who send R & N out of the room, not Tom, and at that point he had no clue about the "miscarriage."