> Adrian Tymes wrote:
>
> > There are so many foreign students, the government could not
> > possibly monitor even a small fraction of them.
>
> "Robert J. Bradbury" wrote: ... I could easily
> envision the development of enzymes that turn the CHON in
> the human body into gasoline and TNT. People in possession
> of those enzymes don't get to visit my enclave. Robert
The problem I see with this approach is that enzymes and
gray goo do not recognize borders. If someone really
wants to destroy all humanity, they would go do some
god forsaken place such as Afghanistan for instance, and
do their thing out there. Importing it is the easy part. This
comes back to the old debate about what conditions are
necessary before we agree we must watch every person
everywhere always. spike
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