If that's the case then I suspect the FAA will be next.<p>There was an article on NPR a long time ago about how Airlines are required to offer service for low volume areas (high coast low profit) in exchange for getting rights to high volume areas (high profit).<p>Given the ruling by the 5th circuit one could argue that this is a tax on businesses and that businesses might as well stop flying to low vine or small airports.<p>But on the other hand this might be good for users of cash. As a cash user I'm charged a higher price to pay for a service that I'm not using. Specifically paying the credit card surcharges when I'm only using cash. Technically, according to the ruling, this could be construed as a tax to provide Universal credit card service.