The Transportation Security Administration (TSA) in 2006 implemented a policy limiting liquids, gels and aerosols in passenger carry-on luggage to 3.4-ounce containers or smaller, to lessen the chances of liquid explosives being brought onboard commercial aircraft.

Tiny toiletries stuffed into one-quart plastic bags have long been a way of life for frequent flyers who carry their suitcases onboard. That could be the next security screening measure to change, suggests DHS Secretary Kristi Noem.

The United States Department of Homeland Security may soon revise the Transportation Security Administration's 3-1-1 liquids rule. This rule limits the amount of liquid passengers can carry in their hand luggage.