One Million Dead Iraqis Since Invasion?

The Security and Defense Committee of the Iraqi Council of Representatives is saying that a million Iraqis citizens have been killed since the US invasion to the country in 2003. Previous sources and studies have put the carnage both above and below one million.
Meanwhile the Iraqi nation, built by George Bush, Dick Cheney, Donald Rumsfeld, Condoleeza Rice and Tony Blair continue to enjoy the peace of the free.