[djf1]

Leg room can be purchased, if you're willing to spend more. Airlines attempt to satisfy both those who prefer leg room (premium economy), and those who prefer cost savings (economy).

In my experience, the TSA experience is consistently inefficient, with (occasionally severe) bottlenecks. But more frustrating than inefficiency is a sense of apathy radiated by many TSA agents.

Whereas the airlines compete to serve us, the TSA feels vaguely like a slaughterhouse, in which we are the livestock.