Stephen Sackur speaks to Avi Dichter, Chair of Israel's Foreign Affairs & Defence Committee. Think of Israel's turbulent history since the 1967 war and you might think first of the political leaders, Golda Meir, Menachem Begin, Yitzhak Rabin, Shimon Peres and now Prime Minister Benjamin Netanyahu. Other crucial figures in Israel's story spent more time in the shadows, like Avi Dichter, who was head of the Shin Bet, Israel’s internal security service from 2000 to 2005. Only later did he enter politics and is now a parliamentary ally of prime minister Netanyahu. How does this gatekeeper of Israel’s security see his country's future?