Five Marines Killed in Iraq Roadside Bomb

That's what CNN is reporting.

There was a strange story the other day that I am still trying to piece together: where a group of US company contractors opened fire on US soldiers and Iraqi civilians, perhaps killing 2-4 soldiers and untold number of civilians. But the contractors were questioned and then let go.

Sound like there are some missing puzzle pieces here? One would hate to think that both soldiers and civilians would be ok targets for US companies trying to get rich over there. If anyone sees anything specific on this matter, I'd appreciate a link. Thanks.