This message has been transmitted by the an intelligence agency to one of their agents in deep cover. It is known that they have been having problems with journalists exposing their operational plans and secret identities. With that in mind, it is likely that either the word "journalist" or the word "journalists" appears somewhere in the plaintext.

WARNING: This cryptogram contains at least one "fixed point". These are letters of plaintext that encrypt to themselves as ciphertext. (For example, J encrypts as J, or something like that.)

Good luck!