The Transportation Security Administration (TSA) is introducing new scanners that may lead to more travelers being required to check their carry-on luggage. These advanced scanners are designed to detect a wider range of prohibited items, potentially flagging bags that previously cleared security. As a result, passengers could be forced to gate-check their bags, incurring additional fees and causing potential travel delays. The TSA has not publicly detailed the specific capabilities of the scanners or the criteria for triggering a bag check. This change impacts travelers accustomed to avoiding checked baggage fees and the associated risks of lost luggage. Experts advise travelers to be prepared for potential complications and review TSA guidelines regarding permissible items. The rollout of these scanners is occurring across major airports, and the full extent of the impact remains to be seen.