The short answer: I don't fly anywhere to look at porn. The long answer: There are laws that tell the airlines and the railroads to whom they are not allowed

The short answer: I don't fly anywhere to look at porn. The long answer: There are laws that tell the airlines and the railroads to whom they are not allowed to sell information on my travel habits. Restrictive ones. There are certainly laws against wireless companies selling information on my whereabouts.