Right To Know!

We have an indisputable right to know what is happening to our comrades fighting for us, unless that right to know interferes with their right to privacy--namely, information that the enemy must not have. Since it is that same enemy that is attacking these lightly manned bases it is already obvious to them that the US does not have enough men and the ones we do have are dying because of it!
That is why General McCrystal is so publicly adamant about it.