The United Nations has called for an investigation into a series of alleged abuses in the Iraqi city of Fallujah. Human rights official Louise Arbour said those responsible for any violations should be brought to justice. Controversy over the Fallujah offensive was fuelled by video footage showing a US Marine shooting dead a wounded and unarmed Iraqi. The pictures showed some marines entering the mosque on Saturday. The marine, who has since been taken off battlefield duty, is seen standing above a figure slumped against a wall aiming his rifle at the man's body. "He's f****** faking he's dead," the...