The Transportation Security Administration (TSA) has announced a proposed rule that could introduce an $18 fee for airline passengers who do not possess a REAL ID or passport when going through airport security checkpoints. This new measure aims to improve compliance as travelers may face increased challenges if they arrive at airports without the appropriate identification. Under the changes, passengers without a REAL ID may opt for a biometric scan instead, allowing them to access security, but this convenience would come at a cost. The proposal is currently subject to reviews and could ultimately affect the travel experience for many.