The Flickr of Tiny Web beacons?

My concerns about Flickr as a possible exercise in setting web beacons across many sites, have been examined more closely by Adam Fields on his blog. Neither Adam and I can find any conclusive evidence in the Flickr privacy policy that either says Flickr IS doing this , nor that they have barred themselves FROM doing this. One way to safeguard yourself, should you be feeling particularly conspiratorial, would be to tweak your browser to refuse to accept any third party cookies (says my occasional tech-guru correspondent, Mike Scott, who notes that even IE v 6 on only bars third party cookies by default when they come from a source without a compact privacy policy. (Which is a bit different from barring all thrid party cookies by default.)