So, as I understand from this, that these videos were sent to comfort some other geniuses who are in custody for planning future attacks.
Well, this is idiotic, because these guys in custody don't feel comforted by these videos due to the simple fact that their plans got scrapped by being caught.
And, they are supposed to be happy, comforted, and content when they actually succeed in their attacks and become martyrs, so that they can get their 72 virgins.
All these terrorists are so backwards in their thinking, that it is becoming comical.