While you're waiting to take off your shoes and put your laptop in a plastic tray in the airport security line, how about passing the time by reading about why you should change your car insurance?

The Transportation Security Administration is ready to give you that opportunity. And it wants to know if airports would like to use security checkpoint ads to generate some income. TSA notified industry that it will accept proposals for the next month from airports and advertisers who want to take part in a one-year program that will evaluate interest and effectiveness of checkpoint advertising.

LAX and some small airports in Tennessee are already taking part in a small-scale pilot test to evaluate the idea. Ads are placed in the bottom of the plastic trays used to hold a passenger's belongings as they pass through the screening machines.

TSA has invited interested advertisers and airport operators to come to Washington on Thursday to learn more about the plan.