Several lines of dialog in the episode preview were deleted from the final cut of "The Galileo Seven". This scene seemed most the most likely place where these lost lines went.
Here is a transcript of the additional dialog:
Commissioner: "Do you know what you have done? You've concerned yourself with only seven people. You said something about a needle in a haystack. It's useless."
Kirk: "If they're not there Commissioner, then they're dead by now."