Yuval Noah Harari. 21 lessons for the 21st century (№ 377898)

The terrorists set themselves an impossible task without the army, through violence to change the political balance of forces. To achieve the goal they oblige the state also to set ourselves an impossible task to protect all citizens from political violence, at any time and in any place. The terrorists hope that when the government attempts to fulfill its promise, it will mix political maps and in their hands will suddenly be an ACE.
Terrorists undertake an impossible mission: to change the political balance of power through violence, despite having no army. To achieve their aim, terrorists present the state with an impossible challenge of their own: to prove that it can protect all its citizens from political violence, anywhere, any time. The terrorists hope that when the state tries to fulfil this impossible mission, it will reshuffle the political cards, and hand them some unforeseen ace.