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Some thoughts on "suitcase nukes"
Wretchard the Cat at Belmont Club; EFL'd. As usual, he's on to something.

The terrorist "suitcase nuclear weapon" is the nightmare scenario often invoked to explain why such weapons should never be allowed to fall into the hands of leaders like President Ahmadinejad. . . . But a closer examination of the suitcase nuke problem suggests that this method of delivery has certain limitations. Let's begin a thought experiment by considering the number of suitcase nukes that would be required to destroy a country like France or the United States.

The National Resources Defense Council (NRDC), a somewhat left of center think tank, produced a very respectable model of how many nuclear weapons would be required to inflict damage to the point of diminishing returns, a concept accepted by Robert McNamara at the height of the Cold War. This inflection point is known as the "knee" and occurred where around 25% of the target population was killed. . . . According to these figures it will take about 150 nukes to 'destroy' the fabric and cohesion of the United States and about 30 to do the same to France. Note that inflicting this damage will not have any substantial effect the US ability to perform an immediate counterstrike with thousands of nuclear warheads because these are deployed in hardened facilities or on submerged platforms which would survive a paltry (by Cold War standards) 150 warhead strike. But this number would be enough to finish the target nation as cohesive society for decades.

The problem with suitcase nukes is maintaining command and control over them. Any suitcase nuke which could be armed and detonated by its possessor (protected only by a combination detonator just like the movies) would have serious defects as a weapon. This method delegates so much command and control over the weapon to the possessor that it is effectively "his". In our thought experiment, imagine a rogue state providing such weapons to 150 terrorist teams for use against the United States. There would be no assurance that once deployed these weapons would not be stolen or used for unintended purposes. It would be possible for a rogue team to sell the weapon to the highest bidder, perhaps a rival rogue state looking for such devices. It would not be impossible for one of the teams to turn against its masters and use it against them. A team with a suitcase nuke might divert to Switzerland where they could demand the payment of a few billion dollars in exchange for not blowing up Zurich. A suitcase weapon could be captured by the CIA or the Mossad and reimported into the rogue state where it could be detonated against targets who could hardly admit its true provenance. If the teams belonged to rival political terrorist organizations they could be used against each other. Clearly, releasing a large number of suitcase nuclear weapons without positive command and control would be less than ideal and probably disastrous for the wielder.

The most probable workaround to the problem would be to deploy these weapons at a very low rate by sending them out one trusted team at a time. In that way the weapon would be used within a short period and watched, probably by a large number of mutually counterchecking personnel, every step of the way. One nuke to Paris. Boom. One nuke to New York. Boom. The problem with solving the control problem by slowing down the rate of attack is apparent from the table above. One nuke in Paris or New York will be grossly insufficient to finish the infidel enemy but quite sufficient to provoke a massive response. Once the fissile traces are identified ten thousand warheads will be headed back the other way.

The other obvious possibility is to deploy a large number of suitcase nukes in a componentized configuration so that it requires the assembly of several teams, each with part of the requisite firing information or componentry to activate the device. (This is conceptually similar to the two key system on boomers) For example, Iran could deploy 450 teams -- three teams to activate a suitcase bomb -- with the intent of controlling 150 devices targeted at the United States. Unfortunately a force of this size could hardly remain covert for any length of time. The teams security would rapidly "deteriorate" in a deployed environment and would almost certainly be discovered before long. Once discovered the game would be up. The weapons would no longer be deniable and their use would be open belligerency. The suitcase weapons would have no advantage to nuclear bombs delivered by the air force of the rogue nation. . . .
Posted by: Mike 2006-01-22
http://www.rantburg.com/poparticle.php?ID=140484