I read in sci.electronics.design that CW
wrote (in ) about 'Cellphones and
Bombs', on Thu, 18 Mar 2004:
You can try to ratioanlize it as much as you want. The willfull
electronic interference of a radio service is a crime. Did you read the
part of my post about signal blocking? I thought not. Go back and try
again. If a terorist is going to strike, he is going to strike. The
Department of Homeland Paranoia is not going to be able to do anything
about it.

I am ALMOST old enough to remember a similar idea held in UK and Europe
before WW2, that 'the bomber (aircraft) will always get through'. The
RAF pretty well disproved it.

There is a finite probability that an individual terrorist, acting
completely alone, might evade all the checks. But it's far more
difficult for members of a terrorist cell to evade detection.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk