With thousands of CCTV cameras in our towns and cities, the UK has become one of the most watched places in the world.
In the second part of his series on the surveillance society, Richard Bilton has been to meet the residents of an ordinary suburban street, who've taken the hidden world of surveillance into their own back gardens.
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Who's Watching You
Who's Watching You airs on Monday 1 June, 2009 at 2100 BST on BBC Two.