From shoe-free screening to facial recognition technology, here's how airport security checkpoints are being transformed in 2025.

As of Tuesday, passengers at U.S. airports are no longer required to remove their shoes during the TSA screening process.

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.