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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A scandal-hit NHS trust where a teenager drowned in the bath is still failing to protect patients from risk of harm, a watchdog has found.
New research suggests metal-on-metal hip replacements implanted since 2006 are more prone to failure and they "fail in a much nastier way".
With the force facing legal action from the families of the Hillsborough victims, ITV News looks at the web of lies which led them here.