After years of following the paper trail of $51 billion in U.S. taxpayer dollars provided to rebuild a broken Iraq, the U.S. government can say with certainty that too much was wasted. But it can't say how much. In what it called its final audit report, the Office of the Special Inspector General for Iraq Reconstruction Funds ... spelled out a range of accounting weaknesses that put billions of American taxpayer dollars at risk of waste and misappropriation" in the largest reconstruction project of its kind in U.S. history. "The precise amount lost to fraud and waste can never be known," the report said. The office has spent more than $200 million tracking the reconstruction funds, and in addition to producing numerous reports, his office has investigated criminal fraud that has resulted in 87 indictments, 71 convictions and $176 million in fines and other penalties. These include civilians and military members accused of kickbacks, bribery, bid-rigging, fraud, embezzlement and outright theft of government property and funds. Of the $51 billion that Congress approved for Iraq reconstruction, about $20 billion was for rebuilding Iraqi security forces and about $20 billion was for rebuilding the country's basic infrastructure.