‘Brainwashed’ Children of ISIS Terrorists Worry Germany: Spy Chief

Policemen patrol in front of the court in Celle near Hanover, central Germany, prior to the continuation of the trial against notorious Iraqi hate preacher Abu Walaa (unseen), described as the ISIS group's de facto leader in Germany, on November 7, 2017. Julian Stratenschulte//AFP/Getty Images

BERLIN—Germany’s domestic intelligence chief wants the government to review laws restricting the surveillance of minors to guard against the children of ISIS terrorists returning to the country as “sleeper agents” who could carry out attacks.

Hans-Georg Maassen, head of the BfV agency, told Reuters that security officials were preparing for the return of ISIS terrorists to Germany along with potentially “brainwashed” children, although no big wave appeared imminent.