Dear Upziet,
I will pass over the unfortunate Kazran incident, if only because you would not listen to me if I ranted at you. But the current situation is most invigorating. Despite your patient's genuine bewilderment over Amy's questioning and River's slap, you recovered well, later retrieving the details from Fizspur and Girsnub without revealing it to the patient.
There are secrets in the TARDIS—Amy's strange pregnancy, the Doctor's death, and River's identity. Nothing breaks a bond faster than secrets, particularly of this magnitude. Keep him suspicious and brooding.
Apart from finally understanding why Nixon was so secretive, we also have humanity committing mass murder unwittingly. I shall leave to the studious to determine the motivations of those aliens. As we are spiritual beings and immune to their hypnosis, we can use this unwitting murder to our advantage, creating vague guilt and uneasiness.
Sincerely,
Screwtape