The fate of two of the Isis 'Beatles' is being debated in the UK.
Britain's Defence Secretary says two captured Isis (Islamic State) extremists who grew up in England should never be allowed to return from Syria.
Gavin Williamson's comments in the Sun newspaper come amid reports that Britain has already stripped El Shafee Elsheikh and Alexanda Amon Kotey of their citizenship, opening the door for them to be sent to Guantanamo Bay or another prison outside of the UK.
"I don't think they should ever set foot in this country again," Williamson said. "They turned their back on Britain, our values and everything we stand for — they are the worst of the worst."
Elsheikh and Kotey are alleged to have been part of the four-man Isis cell dubbed "The Beatles" because of their British accents.