New Delhi, July 17 -- Travelers giddy about being able to keep their shoes on while walking through TSA checkpoints at the airport again may have something else to look forward to: changes to how much liquid they can carry.

Homeland Security Secretary Kristi Noem said Wednesday during a conference hosted by "The Hill" that she is questioning "everything TSA does" and spoke of possible changes to the amount of liquids travelers can tote in their carry-on baggage.

"The liquids, I'm questioning. So that may be the next big announcement is what size your liquids need to be," Noem said. "We have put in place in TSA a multilayered screening process that allows us to change some of how we do security and screening so it's still as safe."

She ...