It's no bargain. That's the judgment of congressional investigators after a close look at the Defense Travel System, an online system that was supposed to save big money on travel costs.

A Government Accountability Office report says that after 10 years and almost $500 million invested, the Pentagon has a dud on its hands.

If all this sounds familiar, it's because it was reported recently on another GAO report slamming the system.

The new report goes even further, saying the Defense Department is claiming cost savings that it cannot prove.

One example: Pentagon officials claimed millions of dollars had been saved, but the claim was based on a news release from a credit-card company.

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