Sir Michael Fallon, the Defence Secretary, talks tough about British Subjects who have volunteered to become Jihadist fighters (or "cannon-fodder") ! He intends to withdraw their British Passports to prevent them from returning to Britain to live !
The simple fact is that they have committed TREASON by joining the Islamic State troops. This crime used to be punished with death, but that has now been replaced with the costly modern alternative of imprisonment for life !
The Islamic State has organised attrocities not only in Britain but in all EU countries and World-wide !
Therefore the EU must also act ! It has strangled its member countries with countless acts and edicts but neglects totally all problems connected with the security of its citizens ! BREXIT is one of the consequences, but other "EXITS" can be expected if nothing changes !