In message
Tom Anderson wrote:

On Mon, 26 Feb 2007, Graeme Wall wrote:

In message
David Hansen wrote:

On Mon, 26 Feb 2007 09:40:59 +0000 someone who may be Graeme Wall
wrote this:-

I am making the "mistake" of talking about the subject under
discussion, "a dirty biological bomb in London".

Ah, your subject under discussion, not everyone elses.

Nice try. However, it is the subject which was put at the start of this
little bit of the thread by another poster.

Incidentally there is no such thing as a dirty biological bomb, in London
or elsewhere. It is a natural contradiction in terms.

Surely it's actually a tautology? There's no such thing as a *clean*
biological bomb!


A dirty bomb is a conventional explosive device designed to spread
radioactive 'shrapnel' around, any biological component would be killed by
the radioactivity long before delivery.

--
Graeme Wall
This address is not read, substitute trains for rail.
Transport Miscellany at http://www.greywall.demon.co.uk/rail/index.html