What we're seeing from Iraq is not an aberration, it's part of a long tradition in the US military of treating the enemy as if they were less than human.
This is from a review of the book
War Without Mercy: Race and Power in the Pacific War by historian John Dower,...
War Crimes: Dower, War Without MercyFrom Dower, John W. War Without Mercy: Race and Power in the Pacific War. New York: Pantheon, 1986.
``In 1944, the New York Times reported that a US serviceman had sent President Roosevelt a letter opener made from the bone of a dead Japanese soldier. Life magazine published a photograph of a woman standing next to a Japanese skull which her fiance had sent from the pacific, with the caption: Arizona war worker writes her Navy boy-friend a thank-you note for the Jap skull he sent her in the May 22, 1943 issue.''
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US soldiers routinely used Japanese skulls as ornaments on military vehicles and as war trophies, after the flesh was boiled in lye or left to be eaten by ants. On February l,l943, Life magazine published a famous photograph by Ralph Morse which showed the charred, open-mouthed, decapitated skull of a Japanese soldier killed by US Marines at Guadalcanal, which was placed on the tank. The caption read as follows: A Japanese soldiers skull is propped up on a burned-out Jap tank by U.S. troops.''
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The mutilation of Japanese dead for souvenirs or trophies was a popular activity among U.S. combatants during World War II. Skulls, noses, ears, teeth, and other portions of the Japanese anatomy were prized as symbols of victorious confrontations with an inhuman foe (no similar practices emerged in combat with the European Axis). If, as an American general observed, "killing a Japanese was like killing a rattlesnake," then it was not inappropriate to preserve as a token of the fatal encounter something analogous to the reptile's rattle or skin.''<snip>
http://ideas.paunix.org/mt/mte/archives/000006.htmWar is fucked up. And it gives "permission" to soldiers to act out the sickest aspects of their own societies. Especially in a case like Iraq, where the top leadership is signalling that this kind of thing is exactly what needs to be done to "defeat the insurgency"...