What is TSA's PreCheck expedited screening program?

NEW YORK (AP) — Fliers facing extremely long airport security lines this spring and summer might want to consider becoming members of the Transportation Security Administration's PreCheck, an expedited screening program that can speed travelers through the checkpoint.

Laptops and liquids stay in bags.

[...] these fliers go through standard metal detectors rather than the explosive-detecting full-body scanners most pass through.

Travelers get PreCheck if they are a member of one of the Customs and Border Protection's expedited entry programs — Global Entry, Nexus and Sentri — or by joining directly with the TSA.

Travelers can fill out an application online and it then takes some time for the government to approve the application and schedule an in-person interview, typically at an airport.

Allegiant Airlines, Air Canada, Alaska Airlines, American Airlines, Delta Air Lines, Hawaiian Airlines, JetBlue Airways, OneJet, Southwest Airlines, Sun Country, United Airlines, Virgin America and WestJet.