maryland arithmetic

It's not like getting Madoffed, but it's still $31 million
In 2007 in the Montgomery County, Md., real-estate assessment office mis-added some numbers and entered $16 billion more into the land value in the county than was there, and nobody ever checked the math, and that number got entered several more times in state and federal records, and eventually the state of Maryland was denied about $31 million in federal grants that it deserved to have under the law but couldn't get because its land is thus too valuable. Washington Post