For the first time ever, six former heads of Israel’s domestic secret service agency, the Shin Bet, share their insights and reflect publicly on their actions and decisions. Since the Six Day War in 1967, Israel has failed to transform its crushing military victory into a lasting peace. Throughout that entire period, these heads of the Shin Bet stood at the centre of Israel’s decision-making process. The Gatekeepers offers an exclusive account of the sum of their successes and failures.