Kudos to Sue Feldman and Ann Poritzky of NIH. They may be first out of the gate with implementation of Persistent Cookies on the NIH/NCI web site under the new OMB policy on Web Measurement and Customization.
Read their privacy statements at:
http://www.nih.gov/about/privacy.htm
and:
Awesome…Congrats
I love my agency (NCI)!