The Transportation Security Administration's security protocols could be in for another shakeup — this time involving the long-standing limits on carry-on liquids. The big picture: Homeland Security Secretary Kristi Noem said TSA is looking to modify the liquid rule Wednesday at the Hill Nation Summit.

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.