Edited highlights of tonight's programme.

Dispatches, Channel 4's flagship current affairs strand, exposes the full and unreported horror of the Iraqi conflict and its aftermath, revealing the true scale of civilian casualties; and allegations that after the scandal of Abu Ghraib, American soldiers continued to abuse prisoners; and that US forces did not systematically intervene in the torture and murder of detainees by the Iraqi security services. The programme also features previously unreported material of insurgents being killed while trying to surrender.

Channel 4 is the only UK broadcaster to have been given access to nearly 400,000 secret military significant activities reports (SIGACTS) logged by the US military in Iraq between 2004 and 2009. These reports tell the story of the war and occupation which the US military did not want the world to know.