Pongo, there is absolutely no shame in all in supporting our troops. The troops said they needed armor long ago and it still hasnt been suppleid.
For somebody to imply that is standard operating procedures to armor your own vehicle is the testimony of an 'armchair general'.
Yes, if you are seperated from the supply lines and in the thick of a conventional battlefront, you may want to make your vehicle as secure as possible with whatever means possible, including, but not limited to, sacks filled with sand or dirt.
If you are on routine patrols in an occupying role, through obvioulsy hostile terrirtory and the humvee armor plating facility is operationg at 25% capacity, one may wonder why they are forced to use 'last resort' methods to protect themselves instead of having the professionals do it for them.
Thus the question was posed for Rumsfeld, by those who know the best, the troops in harms way.