11 September 2013
Updated at 16:28 ET
9/11: The man who 'plotted' America's darkest day
Tara McKelvey
BBC News Magazine
Khalid Sheikh Mohammed
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Relatives of the dead gathered in New York to mark the 12th anniversary of 9/11. Meanwhile, 1,400 miles away, the man who says he masterminded the attacks awaits his trial
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http://www.bbc.co.uk/news/magazine-23914519