A graphic US military video showing the killing of three Iraqi people is being circulated via the web after appearing on US TV news channel ABC News. The one-minute file, filmed from a US Apache helicopter, shows three apparently unarmed people being shot with 30mm cannon fire. The clip was cut from a longer video obtained by ABC News last week and verified by a senior US army official. The MPEG format file has been posted to several right-wing US forums, where the main concern seems to be to celebrate the effectiveness of the Apache's firepower. So far though, in...