The DHS revolving door strikes again.

When he was chief of the Homeland Security Department's Federal Air Marshal Service, Thomas Quinn spent $22 million on a system of handheld computers that were supposed to help air marshals log suspicious behavior, ABC News reports.

It was a waste of money, most air marshals complain now. The technology is useless.

Maybe so -- but not for Quinn. Just weeks after leaving the top Air Marshal post earlier this year, Quinn signed up to be a consultant for the Datamaxx company, the producer of those PDAs.