As airport security checkpoints undergo changes that may help travelers get through faster and with less hassle, experts say paid services offering modified security screenings — like TSA PreCheck, Global Entry and Clear — may still be worth the cost.

The TSA said its PreCheck airport screening lanes are operational, hours after the DHS said the faster security checkpoint services would be paused.

Amid long waiting lines at airports, some travelers say they’re avoiding the worst delays by using TSA PreCheck Touchless ID. Airports continue to struggle with longer security lines during the partial government shutdown,