As more images of debased Iraqi detainees ricochet around the world, many viewers are as bewildered as they are outraged.

Some rocket fuzes can be fitted with a Graze' function which is a device to cause the fuze to function if it strikes a target at a shallow angle and starts to ricochet.

Flying only a few dozen feet above the sea toward their targets, bombers would release their bombs, which would then, ideally, ricochet across the surface of the water and explode at the side of the target ship, under it, or just over it.