Let's have wide-ranging debate on ID cards

Harry Reid is right to be concerned about the rapid growth of the surveillance state and the threat to our liberties from those who should be safeguarding them (The Herald, April 26). However, I cannot entirely agree with his statement that it is impossible to have a mature and reasonable argument about identity cards because we no longer trust those in authority. They may not be trustworthy, but that is not why we cannot debate the issue sensibly.