Lack of a moral core plagues Iraq's Shia government
Iraq had a corrupt culture before the fall of Saddam and that corrupt core remains. It has been aided by the Shia's governments on bigotry toward religious and ethnic minorities. The US retreat under Obama came before the country could be instilled with a moral core to resist corruption and its corrosive effects. Sometimes it takes more than a generation to change a culture, but when it happens it can lead to strength and prosperity as is seen today in South Korea.