The are a lot more recent examples of the DOT using this power than there are of the FTC using its Section 5 authority, like the #TarmacDelayRule. But as Robert Kuttner writes, the airlines reneged on their end of the $54b bailout, slashing staffing levels and failing to invest in IT modernization - examples of the "unfair and deceptive" practices that the DOT could intervene to prevent:
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