Homeland Security Secretary Kristi Noem's comments come a week after the department announced that travelers flying domestically will no longer have to remove their shoes when passing through security screenings.

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.