Facebook chief executive Mark Zuckerberg introduced the new "Graph Search" feature at a press event in California.
He said: "Every piece of content has its own audience; most content is not public; you can only search for content that has been shared with you".
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After a relatively mild and quiet night, an episode of rain for many of us tomorrow.
The 34-year-old from Coulsdon in Surrey died during the private party in Headley in the early hours of Monday, Surrey Police said.
The Home Office made the arrests at various restaurants across London on July 4.