[ RadSafe ] Shielding of DEVICES

[Dan McCarn]

"Why do nations spend so much effort developing precise guided missile
systems for weapon delivery... "

Dear Jerry -

The effort of nations is to prevent collateral damage. The effort of
 terrorists is to cause as much collateral damage as possible because of
the political disruption and economic consequences. That is their primary
intent. Thus the targeting of civilians in a market place or a bus.  It is
part of an asymmetric warfare threat.

-- 
Dan ii

--
Dan W McCarn, Geologist
108 Sherwood Blvd
Los Alamos, NM 87544-3425
+1-505-672-2014 (Home – New Mexico)
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HotGreenChile at gmail.com (Private email) HotGreenChile at gmail dot com


On Thu, Jan 5, 2012 at 2:57 PM, Jerry Cohen <jjc105 at yahoo.com> wrote:

> The presumption here seems to be that the explosive DEVICE would enter the
> country via normal shipping channels, and might be detected radiologically
> at
> point of entry. I would be more concerned that  a  clever terrorist would
> avoid
> such inspection by simply transporting  the device by truck or automibile
> over
> our unprotected borders, or land it by boat over our unprotected
> shoreline. This
> approach seems to work pretty well for the Drug cartels. Perhaps some smart
> person  can think of a way to avert such a possibility. I can't
> Another thought on the subject--- Why do nations spend so much effort
> developing
> precise guided missile systems for weapon delivery, when a pickup truck
> would
> suffice? With  nuclear explosives, a near miss is about a effective as a
> direct
> hit.
>
>
> Jerry Cohen
>
>
>
> ________________________________
> From: Jim Darrough <darrougj at onid.orst.edu>
> To: The International Radiation Protection (Health Physics) Mailing List
> <radsafe at health.phys.iit.edu>
> Sent: Thu, January 5, 2012 11:29:03 AM
> Subject: Re: [ RadSafe ] Shielding of DEVICES
>
> My two cents...
>
> I would consider researching something called "neutron interrogation"
> before
> I jumped at the screwdriver solution. These were not available during
> Oppenheimer's reign.
>
> Jim Darrough
>
>
> -----Original Message-----
> From: radsafe-bounces at health.phys.iit.edu
> [mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Clayton J Bradt
> Sent: Thursday, January 05, 2012 10:50 AM
> To: JPreisig at aol.com
> Cc: radsafe at health.phys.iit.edu
> Subject: Re: [ RadSafe ] Shielding of DEVICES
>
> Joe Presig wrote:
>
> ...   A person who can bring to bear such a DEVICE into  another nation
> would probably be able to
> design a radiation shield(s) to make it very difficult and/or impossible to
> detect such a DEVICE.
>
>     As Oppenheimer once responded to the question (How  would you detect
> such a weapon), he wryly suggested that one needs a screwdriver to detect
> such DEVICES.
> (i.e not some
> sophisticated radiation detector(s)).  Hopefully USA and other  nation's
> will use direct inspection of containers, shipping packages etc. to look
> for
> nuclear DEVICES  directly ....
>
> There is no instrumental solution to this problem.  Save for dismantling
> every package (as Oppenheimer's remarks suggest)  before it crosses the
> border, there will always be ways to circumvent any surveillance system.
> The amount of time and money being spent on developing new super-duper
> detection systems is largely wasted.  It would be far better spent on
> trying
> to figure out why some people want to attack us, and then convincing them
> not to do so.  (This of course would risk the possibility of learning that
> some people might have good reasons for hating us.  It's a risk worth
> taking, in my view.)
>
>
> Clayton J. Bradt
> Principal Radiophysicist
> NYS Dept. of Health
> Biggs Laboratory, Room D486A
> Empire State Plaza
> Albany, NY 12201-0509
>
> 518-474-1993
>
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