Of course the U.S. goverment made a half hearted counterclaim. From the article:

"The U.S. government reached a different conclusion. Based on information from the Blackwater guards, who said they were fired upon, the State Department determined that the security team's actions "fell within approved rules governing the use of force," according to an official from the department's Bureau of Diplomatic Security. Neither U.S. Embassy officials nor Blackwater representatives interviewed witnesses or returned to the network, less than a quarter-mile from Baghdad's Green Zone, to investigate."

Not a problem, The reason is clear: their future kids may become a suicide bombers.

Would you like to expand on that, I don't think I understood your point PeaceWatcher. Not a slam against you, I just don't get what your point. Clarification would be appreciate it.