MI6 higher-ups were asking her to supply daily updates on the progress of the NAG, and before going to bed she wrote one that she did not enjoy writing at all. All day she had, in her mind, been "making progress" according to some artificial metric of what that meant: emails read and written, databases scanned, checklists ticked off, images pondered over. But since none of that work had actually led to the identification of the business jet in question, or to any evidence whatsoever that it had entered the United States, it was only progress in a negative sense. Another day of such progress and the NAG would be dead and buried, and she would be on a flight back to London.