Throughout the war in Gaza, the Israeli military has told its people – and the world – one thing: it does not deliberately kill civilians.

In a documentary by the Israeli filmmakers Yuval Abraham and Rachel Szor, Israeli military insiders detail the vast AI systems used to rain down strikes on Gaza, which have directly led to the slaughter of civilians. The film takes its name, NAZA, from the codeword used to count the number of civilian deaths deemed acceptable as collateral damage for every airstrike against suspected Hamas members. NAZA does not distinguish between women and men, adults and children, militants and civilians.

The film, produced by the Guardian and in cinemas in the UK and around the world, is based on testimony from more than 100 sources, and features secret interviews with 24 military whistleblowers on rooftops across Tel Aviv. It has provoked rage and an extraordinary political backlash inside Israel. Yuval and Rachel tell Annie Kelly how they have been branded traitors and threatened with having their citizenship revoked, and how the Israeli prime minister, Benjamin Netanyahu, has pledged to hunt down and expose their sources.