Google can count itself fortunate that a serious privacy storm it caused took place in the run up to Christmas - when world+dog was otherwise occupied. By altering the behaviour of one of its web-services, Google ran foul of its own Privacy guarantee - and continues to violate it.
Here's what happened.
In 2005 Google introduced a web-based RSS reader, in response to the popular and well-regarded Bloglines. Like Bloglines, Google's Reader service permitted users to share their feeds with a selected group of friends.
On December 14, this all changed. Google permitted anyone in your Google contact book to see your "shared" list. Passing acquaintances, employers and spouses were now able to read a user's RSS inbox.