Hundreds of privately fostered children in Britain, many from abroad, are in danger of neglect or abuse amid continuing failures to identify and protect them, a Newsnight investigation has discovered.
The programme found it is still too easy for a child to be brought into the UK and grow up "invisible" to the authorities - 10 years after the country was shocked by the death from abuse of eight-year-old Victoria Climbie.
Newsnight traced the journey of one young Nigerian, Tunde Jaji, now 24, who was brought to London when he was five years old to live with a woman he called his "aunt". Here Mr Jaji tells his story in his own words.
Artwork courtesy Tunde Jaji. Slideshow production by Paul Kerley.
Watch Tim Whewell's films on invisible children on Newsnight on Monday 13 and Tuesday 14 September 2010 at 2230 BST on BBC Two.