From: John Cuccia 

On Wed, 13 Jul 2005 15:20:58 -0400, "Tony Ingenoso"
 wrote:

>So what is the physical mechanism for the "harm" DU causes?

Depleted uranium is not inert, it is radioactive.

Check out Section 1.7 "Activity of Depleted Uranium" in this
http://members.tripod.com/vzajic/1stchapter.html#Activity%20of%20Depleted%20Ura
nium


While it emits mostly alpha particles which are easily blocked by everyday
clothing,  inhalation or ingestion can be dangerous:
http://web.ead.anl.gov/uranium/guide/depletedu/health/index.cfm

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