Terrorists behind bars pose new threats for Europe

Trial of French suspect accused of killing four people in Brussels illustrates the risk that terrorists spread plots and ideology to others while in prison.

A terrorism trial starting here on Thursday highlights the difficulties Europe’s courts and prisons face containing the spread of jihadist ideology behind bars.

Mehdi Nemmouche, a 33-year-old Frenchman of Algerian origin, faces life in prison for allegedly shooting and killing four people at the Brussels Jewish Museum in May 2014. But once in prison, law-enforcement officials warn, terror suspects and convicts breed even more plots and spread their ideology to other inmates.

Source: WSJ