Re: News at 10
Uranium's value as dirty bomb material is purely journalistic
Depends on the history of the sample. Natural or enriched uranium which has never being through a reactor - sure, chemical toxicity would be a greater worry than the tiny amount of radiation it gives off. Once it has been through the reactor though, it is full of the fission byproducts, most of them radioactive and many of them rather nasty.
Where do you think the radioactive contamination at Chernobyl or Fukushima Daiichi came from? Most of it started its life as perfectly nice and law-abiding uranium nuclei.