Sir; Since the atrocities of September 11, the UK government has made several statements about its plans to introduce various types of ID cards, yet it has also claimed that a scheme of this nature would be difficult to implement due to public objections and costly infrastructure. Perhaps the government could learn from the experience of the retail sector. After all, surely the answer is one of lifestyle ­ and that's something retailers have been successfully influencing for some time. Concern that people will regard ID cards as an infringement of freedom is unnecessary; most of us think nothing about carrying loyalty cards in our wallets every day. We need ID at the bank or to collect reward points for loyalty schemes, so an extra card in the wallet will hardly even be noticed ­ and if it's ID cards for retail staff members, it may even improve their immediate security. In fact, looking at our European counterparts, many already use ID cards. Not only that, but with a simple magnetic strip on the back containing personal details, their cards often double up as driving licences or access control. The technology is simple, it exists, and it's already widespread. Let's not try to achieve everything in one costly solution that may take years to implement. Let's use what we have already; it makes sense and, who knows, it might even mean we can all carry fewer cards in our wallets! Mark Thomson Marketing manager Eltron {{LETTERS }}