<A target="_blank" href="http://news.techworld.com/security/3315593/german-authorities-accuse-facebook-of-tracking-deleted-users/?olo=rss">Hamburg's Data Protection Authority studied how Facebook uses cookies</A> and published a report on their findings. They say Facebook cookies continue to collect information, for up to two years, after an account is deleted. <A target="_blank" href="http://www.theregister.co.uk/2011/11/03/facebook_cookies_data/">Facebook denies the charge.</A>