Graft and corruption, waste and cheating.

From The Hill:

“The amount of money that has been wasted on these so-called ‘recovery’ efforts has been mind-boggling,” said Tancredo... Citing administration figures, the lawmaker said that $114 billion has been spent on the effort... The lawmaker criticized in particular the amount that has been wasted through fraud and abuse, estimated at $1 billion.

$1 billion lost to fraud out of $114 billion is less than 1.0%. Guess I've been in Louisiana too long; doesn't seem like a lot to me.