you may have heard about the gouvernments proposal to get every car driver to spend £200 on a gps tracking box so that the driver can be charged for every mile they drive, in addition to fuel duty and the normal car tax. Not only will you be billed for the miles that you drive with this box, your location and speed will also be tracked, a clear violation of you privacy.
if you are of the opinion that the above is a step too far you might feel inclined to sign the petition below on the number 10 website. I think somthing like 1.5 million people in britain have already done so.
http://petitions.pm.gov.uk/traveltax