in the documentary i mentioned earlier in this thread (invisible war, by ard tv), there are interviews with a few notable people. one is a Dr. who was in charge of a clean up crew during the 1991 gulf war, and he clearly states that they were tasked with "cleaning up" 24 vehicles with du incidents (either hit by du rounds or du in their armour). they took three months to prep a vehicle for cleaning and three years to clean it. he also states clearly that there is a great deal of long term contamination from the use of du. this is an issue in iraq after a small number of vehicle involved, he says, and then goes on to say there is no way to clean the number of vehicles involved in kosov/serbia 1999. he also goes into some detail as to the effects of the du.
another former service woman states and shows pictures to illustrate that in the field they were instructed to wear nbc suits around battlefields (after hostilities had ended), due to du contamination, and commanders wore this under these circumstances too. she explains the symptoms of du exposure, as do other affected former personnel. there is also a part where footage is shown of the typical effects in disfigurement at birth, in both the us ( children of former service-personnel's children, also iraqi children).
there is also a segment of a german officer who explains his research in this field, specifically in Iraq. he interestingly also goes into the use of uraniuam 236, not just 238, as the old "du is natural" argument fails when you consider that uranium 236 does not exist naturally. of 18 uraniuam isotopes, it is not naturally occurring in the world. he measured the radiation from an expended round from an a-10, and found that in a day it gives the equivelant to one 30th of the safe amount per year for an adult. and that is without ingestion, or breathing in the dust, or entry of dust in a wound.
another issue pointed out in this documentary is that the half life of this uraniuam is in the region of 4 billion years, and the dust keeps blowing around, in a fine dust form. this gets into water and is ingested, or can enter wounds. the dust is so fine it lodges in the lungs, and cannot be removed.
on the other hand, it is used as 99 percent of fuel used in reactors ends up as this form of waste, so it is plentiful. (IF you already have the reactor, as a fellow member noted above). it is also denser than tungsten, but also has the property of forming burning particles upon entry into the hit tank, which is a useful property. it also expels more gas into the hit target's contained volume, expanding the gas volume lethally.
there are clearly up sides and down sides to its use, if we look at this objectively. one question one might ask is a bit like one related to the use of white phosphorous in built up areas...it is safe enough to use, but would you use it in YOUR city when you defended it? or would you object to the enemy using it in your city?
the use of tungten by other countries (noted in a previous post) suggests some do take issue with its use in the military (not just civilian reservations), as it is demonstrably more capable in its intended role than a tungsten equivelant.
on a final note, it should perhaps be noted that the doctor i mentioned in my first paragraph also made the us army video on du safety...and his views are supported by very many, including the head of the gulf war veterans association.
the video is available on google video (in seven parts):
depleted uranium alert! invisible war
http://video.google.com/videosearch...f#q=depleted+uranium+documentary+ard+tv&emb=0