Eight years after his capture as a teenager on an Afghan battlefield, a long-delayed trial began yesterday for Guantanamo's youngest detainee.
His age - Omar Khadr was only 15 when he was captured in 2002 - has exposed President Barack Obama's administration to criticism from child advocates.
The prosecution will receive added scrutiny as this is the first trial under the embattled war-crimes tribunals inherited from the administration of former president George Bush.