The Transportation Security Administration will introduce PreCheck, a new prescreening program for low-risk travelers, at 28 U.S. airports this year including Sea-Tac Airport.
Q: How does it work?
A: Travelers will go to a designated checkpoint where a TSA agent will scan boarding passes for a bar code indicating who has been cleared for expedited screening. Those passengers will be directed to a special lane where they likely will be allowed to keep on shoes, belts, jackets; leave laptops and liquids in carry-ons; and walk though a metal detector instead of a full-body scanner. We say “likely” because TSA still will do random extra screening, so no guarantees.