Steve Horwitz has a column emphasizing that objections to the TSA are about finding ways to improve security, not eliminate it.
Marcotte should take seriously the libertarian alternative, which is to turn security over to the airlines themselves. Aside from the very obvious fact that the airlines have the most to lose if a plane gets blown up, which provides them with strong incentives to get it right, the airlines would not want to create a security system that discourages people from purchasing their product. What profit-seeking entity would want to enrage its potential customers with intrusive methods such as nude scanners and intimate body searches? Only an institution that had no incentive to care what its “customers” think, nor any way of figuring out what trade-offs they would accept, would do so. And that institution is the government or any other monopoly provider.