Former Dragons' Den star Richard Farleigh told Daybreak he views foster care as "society's band-aid".
Farleigh, who was taken into foster care at an early age, said fostering "repairs cases and puts children back into society".
He said being fostered "completely changed my life":
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More than 80 prominent Britons, including Boris Johnson, Russell Brand and former Government ministers, urge Obama to release Aamer.
Thundery overnight with a Met Office warning for rain in place for a large swathe of the country. Quite sunny throughout tomorrow.
Video shot in Islamic State capital Raqq purportedly shows at least two of three missing London schoolgirls.