> On Tue, 2 Dec 1997 10:25:07 +1300, Andrew Mayo <andrew@GEAC.CO.NZ>
> wrote:
>
> Gee Whiz - does this mean I could defeat these things by carrying a
> small EMF pulse generator, such as an electric butane BBQ starter
> wand?  ;-)
>

Or, even easier, since they normally just stick them in the books at
B&N, pull it out and stick it in a different book.  Kind of hard to
detect that which is not there.

Roger