Currently, liquids are limited to 3.4 ounces per container with exceptions for essential items. Days after announcing that travelers would no longer need to take their shoes off for TSA screening before flights, Homeland Security Secretary Kristi Noem hinted at another possible change.

Transformations in airport security expected as TSA reevaluates checkpoint procedures. New technology could eliminate the need for shoe removal and reduce restrictions on liquid carry-on.

Homeland Security officials have said they are reviewing all of TSA's current rules and "exploring new and innovative ways to enhance the passenger experience and our strong security posture,” which Matthew Borie,