The mother of the back-packer, who was lost for three days in the Australian outback, says he looks fantastic - despite his ordeal.
Claire Derry has been reunited with her son, Sam, who survived by drinking contact lens solution.
As more details of his dramatic rescue emerge - she says he's incredibly lucky to be alive.Toby Sadler has the story.
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Pictures of today's events unfolding following a major security incident at the Houses of Parliament.
At least two people have died after a knifeman brought terror to the heart of Westminster.
The Cobra committee brings together government ministers with senior officials of the emergency services and security agencies.