Let them come back screen them and check on them. It undermines IS as suddenly the foreigners have a way out, It is a source of intelligence , and they can be used to show kids it is not cool. If we have proof they committed war crimes they get jail.
far too risky - the chances of being able to prove guilt to 'everyday' murders and rapes in a warzone like Syria/Iraq to the satisfaction of a court is not far off zero, so in effect the only former-IS people who face any serious risk are the
celebrities like Jihadi John. which, as i think we'd agree, barely touches the surface of the orgy of killing and rape that IS have indulged in.
secondly, i'd be
very sceptical of rehabilitation - you might achieve genuine rehabilitation with a percentage, but what percentage that you don't
but don't know it is acceptable to you? for me, its not a high number...
i understand that returnees can be a valuable sourse of int - there was a thing on R4 in the last two days about a French returnee who reported to DGSI that as soon as he was approached by the IS Belgian bloke (who'se name escapes me..) currently in Syria he was asked about attacking a
music venue in France - but for me the dangers of returning, unrebilitated, unrepentant IS people is greater than both the damage to IS of an outflow of foreign fighters, and the int windfall they might bring.
in truth, the only
safe option that doesn't involve internment for the rest of their lives or execution is to put them on an island in the Atlantic with shelter, tools and food to tide them over until they can farm the place. thats not going to happen, so every other option is more compromised and less safe...