The kind of waste we are talking about is a trip to London that cost taxpayers $7,000 for premium class that, if it had been a coach trip, would have cost $700.

When it doesn't go into the property system, it's a lot easier for it to disappear.

Orders were one of the key causes of the disputes and the problems.

It's one way to look at it. There are always some bad apples out there, trying to do things for personal gain.

NASA's financial management challenges impact its ability to not only prepare financial statements but, more importantly, to effectively manage its contractors and major programs.

People are concerned this is a risk.