On Mon, 09 Jul 2007 12:44:24 GMT, John Ferrell
wrote:

I don't believe the GPS system can
survive a serious attack any more than the World Trade Center.

I would like to be wrong on this point...

Hi John,

Well, perhaps not wrong currently. Military systems and the future of
the Web is migrating towards what is called Network Programming (in
distinct contrast to prime time TV programming) where content is
massively parallel and noise (an attack) is rejected.

73's
Richard Clark, KB7QHC