people sometimes ask me why I won't shop at Tesco

from today's Guardian

Tesco is quietly building a profile of you, along with every individual in the country - a map of personality, travel habits, shopping preferences and even how charitable and eco-friendly you are. A subsidiary of the supermarket chain has set up a database, called Crucible, that is collating detailed information on every household in the UK, whether they choose to shop at the retailer or not.

read the full article here.

I always wonder why people are so happy to have store cards ...