The captors of the head of the charity Care International in Iraq, who was taken hostage on Tuesday morning, have released a video of her.In the film, first aired on an arabic language station, a tense-looking Margaret Hassan is seen sitting in a room. The video, which also shows her identity cards, was accompanied by a claim of responsibility from an unnamed Iraqi group. Hassan holds dual British and Iraqi nationality. She has lived in Iraq for around 30 years, is married to an Iraqi. She has been working for the charity since it started operations there in the early 1990s. Care International is one of the world’s largest independent global relief and development organisations. Her kidnapping comes two weeks after the beheading of British hostage Ken Bigley. Prime Minister Tony Blair, who was condemned by Bigley’s family for not doing enough to save him, said his government would do everything possible to secure Hassan’s release.