Facebook have uploaded a video explaining how privacy works with Graph Search and how users can manage information shared on the social networking site.
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The party's deputy-leader is the sole candidate in the race to succeed Gerry Adams.
A Met Office yellow "be aware" warning for ice is in place across much of Scotland, Northern Ireland and northern England.
Nick Boles warned the PM it was "time to raise your game" and claimed her government "constantly disappoints" in a tweet.