On Sat, 12 Jan 2008 05:45:31 -0800 (PST), MIG
wrote:

This is true, but that exists on paper at the ticket office where you
bought it.

AIUI, on ex-Silverlink it is stored in a database, though I don't
believe that database is carried across between stations (though I am
registered at three - Euston, MK Central and Bletchley as I often
renew mine at any of the three).

With smartcards, your movements (and purchases in future) are being
recorded passively and stored in a database. At any time, any
authority could choose to identify all individuals with a pattern of
behaviour deemed to be of interest to them.

That's dramatically different.

This is true.

Neil

--
Neil Williams
Put my first name before the at to reply.