Keltham was not particularly able to decode this, except that whatever it is, it's not meant to be secret.  Carissa telling Meritxell that Meritxell needs to start filing regular reports on counterstrategies to use against her if she goes rogue?  If Meritxell makes enough progress that this seems like a live consideration, she'll start filing reports with Pilar, Keltham, and maybe Broom.  Well, he can always ask Carissa later what that was about, if he remembers.

Keltham was not particularly able to decode this, except that whatever it is, it's not meant to be secret.  Carissa telling Meritxell that Meritxell needs to start filing regular reports on counterstrategies to use against her if she goes rogue or coherently-insane?  If Meritxell makes enough progress that this seems like a live consideration, she'll start filing reports with Pilar, Keltham, and maybe Broom.  Well, he can always ask Carissa later what that was about, if he remembers.