The High Court has reserved judgment on the extradition of radical cleric Abu Hamza until a later date.
His QC says that an MRI (magnetic resonance imaging) brain scan could establish that he is unfit to plead and should not be extradited to the United States to face trial on terrorism charges.
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His estranged younger brother has been waiting to hear how and when he will be deported to their home country.
Missing Moses, 14, has special needs and has not been seen in the past year.
Police are becoming "increasingly concerned" for the welfare of a missing 76-year-old man from Fulham.