The Washington Post reports this morning that
Senior Iraqi officials repeatedly complained to U.S. officials about Blackwater USA's alleged involvement in the deaths of numerous Iraqis, but the Americans took little action to regulate the private security firm until 11 Iraqis were shot dead last Sunday, according to U.S. and Iraqi officials.
Before that episode, U.S. officials were made aware in high-level meetings and formal memorandums of Blackwater's alleged transgressions....
The lack of a U.S. response underscores the powerlessness of Iraqi officials to control the tens of thousands of security contractors who operate under U.S.-drafted Iraqi regulations that shield them from Iraqi laws. It also raises questions about how seriously the United States will seek to regulate Blackwater, now the subject of at least three investigations by Iraqi and U.S. authorities. Blackwater, which operates under State Department authority, protects nearly all senior U.S. politicians and civilian officials here.
The article focuses on the history of efforts from Iraq leaders to gain the attention of US officials in response to numerous complaints. It is an important part of the puzzle.