Europe has been plagued and hit hard by extremist and jihadist ideologies. With its security forces seemingly unable to prevent bombings, many are looking to Israel’s long experience in dealing with Islamic radicals for answers. How can terrorists be stopped, especially those that don’t fear death? How many more security agencies are needed? And where’s the fine line between necessary checks and investigations and abandoning democratic, liberal values? We ask a director of the National Institute for Counter-Terrorism, and former consultant to the Israeli government - Dr. Boaz Ganor is on Sophie&Co today.