January
13, 2000
The
Honorable William Jefferson Clinton
President
of the United States
The
White House
1600
Pennsylvania Avenue, NW
Washington,
DC 20500
Dear
President Clinton,
We are writing to you in reference to the imminent passage of a shipment
of vitrified, high-level radioactive waste (VHLW) through the Panama Canal en
route from France to Japan. This
shipment, the largest of its kind, will be the first to transit the Canal since
authority over the Canal was transferred from the United States to Panama on
December 31 of last year.
In view of the growing risks of terrorism worldwide,
we are gravely concerned that this shipment could provide a tempting target
for radiological sabotage by extremist groups.
The key to preventing such an attack is the denial of access by intruders
to the ship itself. However, in
February 1998, Greenpeace demonstrators managed to board the first such shipment
through the Canal unchallenged, an incident that led the U.S.-controlled Panama
Canal Commission to conclude that canal security was "dysfunctional."
Given the U.S. commitment to working with the Panamanian
government to ensure the future security and viability of the Canal, we urgently
request that you commission a study that conservatively assesses the threat
to the Canal in the event of a sabotage attack on this VHLW shipment.
In a November 6, 1998 letter to the Secretaries of State, Defense and
Energy, the Nuclear Control Institute (NCI) and Greenpeace International requested
that no shipments of nuclear materials be allowed to pass through the Canal
until a thorough assessment of the consequences of a worst-case radiological
sabotage attack, including use of penetrating charges and high-explosives, had
been conducted. This request previously
had been included in a letter sent to you on January 15, 1998 by five members
of Congress.
In particular, we requested that Sandia National Laboratories (SNL) be
asked to evaluate the potential radiological release from a VHLW shipping cask
caused by a "two-stage" attack, in which a saboteur would first use
a shaped charge to penetrate the wall of the cask, and then fill the cask cavity
with high explosive. The resulting
explosion would cause the cask to fail, at the same time severely damaging and
dispersing its radioactive contents. This
type of attack is a variation on a scenario posited by SNL in its 1996 "Proliferation
Vulnerability Red Team Report," in which terrorists are able to gain access
to VHLW containing surplus weapons plutonium by filling a punctured shipping
cask with low (instead of high) explosive, which they use to blow the lid off
the cask without damaging the contents.
We note that in previous assessments of radiological sabotage of nuclear
waste shipments, SNL analyzed only a "one-stage" attack in which only
a single shaped charge was used. This caused penetration of the cask, but radiological release
was limited because only the VHLW directly in the path of the jet was fractured
and available for release. This
type of attack clearly does not result in the maximum credible radiological
release from a VHLW cask that could be induced by terrorists intent on causing
the most severe event possible.
Our request that the SNL Red Team be assigned to examine
the consequences of a sabotage scenario involving use of high explosives to
disperse high-level waste has gone unanswered.
In a March 12, 1998 deposition in U.S. Federal District Court in
Puerto
Rico, the organizer of the SNL Red Team acknowledged that "the Report did
not consider, or generate any data relevant to potential radiological dispersal
or potential radiological impacts to the environment resulting from attempts
to sabotage a
shipment
of plutonium-bearing materials."
We believe the SNL Red Team report should be re-opened to consider radiological
sabotage of highly radioactive waste and
that
the data generated thus far is highly relevant to this question.
We note that since our initial request for this study,
SNL has done another assessment of the consequences of radiological sabotage
of spent fuel transport casks (R. Luna, K. Neuhauser and M. Vigil, "Projected
Source Terms for Potential Sabotage Events Related to Spent Fuel Shipments,"
July 1999), updating the obsolete analyses of the 1970s upon which current physical
protection requirements are based. However,
this report also fails to analyze attacks with the objective of maximizing the
radiological release from a cask, through the two-stage mechanism described
above or others. It therefore does
not resolve the issues that we have raised.
Moreover, it does not involve actual demonstrations but only computer
simulations.
We maintain that a full-scale test of the two-stage
attack must be carried out, on an actual transport cask containing simulated
VHLW, in order to better understand the maximum possible radiological consequences
to the public and the environment that can be achieved through malevolent intent.
This information is essential for the development of a security plan
that can assure the denial of unauthorized access to the ship and the VHLW casks
it contains, and therefore provide adequate protection for the Canal against
credible threats of radiological terrorism.
We ask for your prompt attention to this urgent matter,
which thus far has been not acted on by the responsible agencies, because it
has a direct bearing on the level of security that should be applied to the
imminent shipment of intensely radioactive nuclear waste, and any others that
might follow in the Canal.
Sincerely,
Paul
Leventhal
Edwin S. Lyman, PhD
President
Scientific Director
cc:
Bill Richardson, Secretary of Energy
William Cohen, Secretary of Defense
Madeline Albright, Secretary of State
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