The Gatekeepers is superb, well worth watching and it is amazing that six Shin Bet (internal security agency) directors agreed to be interviewed on film. Several times being pressed gently, notably over two PLO prisoners being murdered a long time ago.

Yes the reconstruction(s) of incidents, like the murder, are hard to quickly distinguish from actual footage - some of which is grim, notably of blown-up buses in 'The Second Intifda'. The use of overhead imagery, slides, file cards, maps etc is well done, although could be disconcerting - are you watching real images.

Fascinating remarks on the post-1967 Six Day War situation, with 1m Palestinians in Gaza and the West Bank to monitor. Conduct a census and obtain a 'richer picture', supplemented by informants and arrests etc.

The morality of Shin Bet, if not Israeli actions is a constant theme. One director starkly stated "There is no morality dealing with terrorism".

The unexpected murder of Prime Minister Rabin by a Jewish extremist was a great institutional shock; the then director resigned and IIRC was replaced by an outsider, a senior naval officer. I'd forgotten the bombing campaign by Jewish extremists; those convicted effectively being released quickly after public and political pressure.

HUMINT was the key factor at the start, but after the Oslo Agreement gave the Palestinians Gaza and much of the West Bank Shin Bet became far more desk-bound watching screens.

At the end several directors admitted Israel was in a far more insecure position, one agreed it was fulfilling a "worst case" prediction as an "occupation state".