The Office of the Special Inspector General for Iraq Reconstruction (SIGIR) has just posted their new publication - "Hard Lessons: The Iraq Reconstruction Experience." It can be bought from GPO or downloaded from http://www.sigir.mil/hardlessons/default.aspx
"Since the March 2003 invasion, the Congress appropriated about $50 billion in taxpayer dollars for Iraq's relief and reconstruction. This generous provision funded a continuously evolving rebuilding program that sought, among other things, to restore Iraq's essential services, establish new security forces, create a free-market economy, and put the country on the path to achieving an effective democracy. Some of the initiatives succeeded but others did not. Hard Lessons, the first comprehensive account of the Iraq reconstruction effort, reviews in detail the United States' rebuilding program, shedding light on why certain programs worked while others fell short of goals."