P3P Scenario

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  1. A user sets generic preferences, upon which her agent (browser) automatically acts.
    She can now browse the Web seamlessly.
  2. She encounters a site with "exceptional" practices outside her generic preferences.
    Perhaps a sports news site wants to collect her favorite teams for a customized news page.
  3. The user is prompted if she wishes to consider other alternatives, consent to the exceptional practice, or to go elsewhere.
    She can develop a one-to-one relationship with a site she trusts.

To simplify the experience, users also have the option to download recommended settings from a trusted source.
The users could go to a trusted organization that present practices they feel, if followed, will keep users safe.

Joseph Reagle, W3C/LCS/MIT