--- /dev/null
+Meg, I took a look at the file you sent over and it was just a rotation cipher applied to the text.
+At first it was hard to say if that was a bug or a feature and normally I would assume bug, but it
+seemed odd that it was the only file that was affected so I asked around to see if anyone had seen
+anything similar. It turns out that this was not the first navigation problem to hit the programme.
+Gene reported a major issue with the guidance programme for Snoopy on the Apollo Ten mission which
+could again have caused a major problem. For some reason the programme controlling the landing radar
+wasn’t updated with the flight plan and if Gene hadn’t raised that with Iverson then the boys might
+have had real trouble getting back. I looked through the company files and found another of our
+mysteriously formatted reports: the memo informing them about the change, which explains why the
+programme never got updated. This time the cipher was an affine shift, so slightly harder to crack,
+but nothing serious. Still, it is much less likely that it was a bug that time, and in any case
+twice is too much of a coincidence. It did start me wondering why the second cipher was easier to
+crack than the first, but then I realised that the affine shift was too much of a giveaway. A
+rotation cipher really could just be an encoding error, but the affine shift is too sophisticated
+for a mistake, so whoever mangled the reports must have realised they had made a bit of an error
+with the first one and tried to cover their steps with the second. It is hard to see this as
+anything other than attempted sabotage, but I am not sure what the motive could be. I doubt it is
+personal. The Apollo Ten and Eleven crews don’t overlap, so either someone has a grudge against the
+whole Astronaut corps or they are trying to derail the Apollo programme. It could be the Soviets I
+suppose. At first, I thought that their willingness to shift the LUNA-FIFTEEN orbit showed that they
+weren’t part of it, but someone in the State Department pointed out that they might just have had a
+guilty conscience, or been keen to distance themselves once the plot was discovered. I am still not
+sure. In the meantime, could you take a look at the computer files to see who might have had access
+to both memos, and who might have had the opportunity and means to doctor them? I am flying back to
+Langley tonight, to see if the State Department have any ideas what might be going on. Neil said he
+could fly me up in one of the NASA chase planes, which is something I have been keen to try. I will
+call you if I get anything.
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