"TSA is working to make the security process as seamless as possible," ABC News Transportation Correspondent Sam Sweeney reports. "The TSA's ultimate goal is to create a system where passengers can walk through checkpoints without stopping or only pausing briefly."

Right now, travelers can have liquids in travel-sized containers 3.4 ounces or less, placed in a one-quart resealable plastic bag. Anything else, except for medications and baby formula, must be placed in checked bags. The rules apply to liquids, aerosols, gels, creams and pastes.