LiLike it or not, it is totally reasonable to protect MOD equipment with armed guards, but someone has to have a method of determining the sanity of those who are issued with firearms.
That statement is a short step away from saying that men who willingly choose infantry or similar combat arms service branches are probably dangerous gun nuts. That's what you're really thinking, isn't it?
Try this: "Someone has to have a method of determining the sanity of those who are allowed to have sharp kitchen knives or cars to drive."