FBI says that terrorists did not use encryption (fwd)

Adam Back adam at cypherspace.org
Thu, 20 Sep 2001 15:52:16 +0100


It seems rather more likely that the failure is in identifying and
understanding the message.  The hardest part is to automatically
categorise the messages, not to collect them.  The texts would I
imagine have been guarded to the extent that their meaning was not
identifable by a machine, and perhaps not to a human either unless
other reasons for suspicion where there.

Adam

On Thu, Sep 20, 2001 at 07:56:10AM +0100, Roland Perry wrote:
> In message <4397465227.20010920010229@owens-place.org.uk>, Owen Blacker
> <owenfb@easynet.co.uk> writes
> 
> >>Which makes me wonder why Echelon didn't pick up the traffic.
> 
> Because I think it's now accepted that Echelon doesn't "pick up"
> anything. It's more of a search engine for that tiny subset of traffic
> acquired by the authorities. If the emails never went in, the search
> can't pick up the keywords.