I just watched a fairly interesting Horizon programme about the posible effects that a terrorist detonated dirty bomb would have on a major city such as London.

 http://www.bbc.co.uk/science/horizon/

The programme speculated that the terrorist might find a high power radioactive source from the former USSR (such as seed irradiators) or a low power one from the US (medical supplies etc).

However it did not mention the fact that the US is planning to drop many tonnes of depleted uranium on Iraq over the next few months.

The effects on the Iraq population from the last Gulf Ware was documented in a former Indymedia article:
 http://uk.indymedia.org/front.php3?article_id=51585

The US military's own advice about dealing with spent DU munitions can be found here:
 http://www.usapa.army.mil/pdffiles/p700_48.pdf
(or html-ised by google
 http://216.239.33.100/search?q=cache:3lfApZg5QAAC:www.usapa.army.mil/pdffiles/p700_48.pdf+heath+risks+depleted+uranium&hl=en&ie=UTF-8
)

So the americans are:
1). Giving the (alledged) terrorists a radioactive source.
2). Contiminating a country/towns in much the same way that a 'dirty bomb' would.

Just another kink in this crazy war...