Olympic organisers have set out internet censorship rules for the 70,000 Games Maker volunteers, including a ban on pictures
or posts featuring backstage VIPs.
The rules are set out in a document in the Games Makers' area of Locog's website. The document asks people not to mention details about their role, location or about athletes, celebrities and dignitaries.
It says Games Makers should remember to avoid making any public statement on any subject relating to London 2012 without the prior approval of the Locog Communications team - including agreeing to attend any event to speak about any aspect of
It sets out how the public realm of social media could pose a risk to the Games in terms of reputation and safety and security.
In a what to do and what not to do section, it warns volunteers:
not to disclose their location
not to post a picture or video of Locog backstage areas closed to the public
not to disclose breaking news about an athlete
not to tell their social network about a visiting VIP, eg an athlete, celebrity or dignitary.
not to get involved in detailed discussion about the Games online
but they can retweet or pass on official London 2012 postings.