From BBC News.

Columbia University graduate Mahmoud Khalil was arrested by US immigration agents on 8 March.
 
The US government wanted to deport him, arguing his activism was detrimental to its foreign policy interests.
 
But in late June, after spending more than 100 days in immigration detention a federal judge ruled that Mr Khalil was not a flight risk or threat to his community and could be released.
 
Mahmoud Khalil sat down with our North America correspondent Nomia Iqbal.
 
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