thanks for welcome, In this case i don't like the phrase "dirty tactics", I would call it "act(s) of desperation".
..."minimize collateral damage": for me it seems the military or those behind the military don't want victims, which can be connected directly to the war. If they really want to "miminimizeocollateralamage", they would not use DU-ammunition.
"Efforts by the US/UK to keep depleted uranium off the agenda of the UN Sub- Commission on Protection and Promotion of Human Rights failed this August(2001) as the Sub-Commission clearly decided that depleted uranium weaponry qualify as weapons of mass destruction (WMD) and authorized a prominent member, Justice Y. Sik Yuen (Mauritius) to prepare a study on the topic."
the whole article is available here:
http://www.cadu.org.uk/info/campaign/8_3.htm