Our team here at Texas Watchdog has been digging through the mystery at the heart of the city-approved nonprofit -- called HASDC -- that serves as an arm of the Houston Airport System.

KTRK ABC-13's Ted Oberg took a look at the airport situation, too, and last night featured our organization in his report:

The city controller warns the mayor that the city may be in for a rough ride at the airport. For years, a city spin-off company traveled the world looking for consulting jobs for Houston airport employees. Now they have the jobs, but the city has no idea where the money is flowing, and it may cost you in the end.

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[City Controller Annise] Parker can't get HASDC to hand over financial documents and HASDC's auditors can't sign off on them either because in addition to the work the private company is doing in Ecuador and Costa Rica, it's set up two more private companies in the British Virgin Islands, far away from American auditors.

Parker has no idea what those deals are or where the money is. Without that, Parker is worried the city's financial rating could suffer.

"We are increasingly concerned particularly that HASDC has had problems getting their financials in order for at least four years," said Parker.

Much of this is untangling due to the work of Texas Watchdog, a group of independent Houston-based reporters.

Thanks, Ted. If you want to see other stories we've done about the airport controversy, check out our latest story here, or check out roundup of stories and inks directing you to them at this earlier post from the Texas Watchdog blog.

The Houston Chronicle also ran a story about Parker's concern with the airport system's nonprofit.