Fears over Londoner Mahdi Hashi in US court
24 December 2012 Last updated at 11:14 GMT
A man from Camden in north London who had his British citizenship revoked this summer has been charged with terrorism by a court in New York.
Mahdi Hashi, 23, is accused of having joined Somali militant group al-Shabab.
His father Mohamed Hashi maintains his son is innocent while the family's lawyer Saghir Hussain said the case bears the "hallmarks of rendition".