Former Canadian intelligence officer Huda Mukbil calls for Shamima Begum to be brought back to the UK, because of what she claims were failures and a cover up involving the spy agency she used to worked for.
She says her ex-colleagues at the Canadian Security Intelligence Service broke their own rules because the smuggler who brought Ms Begum and two school friends into Syria was also working as an informant for the agency at the same time.
Report by Buseld.
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