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DALLAS (CBS11) – Show your ID, take off your shoes, hand over the carry-on and maybe, just maybe, get a pat-down!

TSA checkpoints are a hassle travelers have come to accept, but new layers of security could further test your patience.

Recent attacks on international airports in Brussels and Istanbul have some government agencies looking at expanded security perimeters.

In both cases, terrorists in Brussels and Istanbul were able to bring bombs into airports, but not past checkpoints.

Moving those checkpoints to the curb or inspecting cars as they first enter the airport could keep terrorists from ever making it inside.

“Everyone’s talking about it,” said aviation security expert Denny Kelly. “They’re talking about it in terms of, ‘Can we do this? And if we do it, what’s it going to cost us?'”

Kelly predicts it would be expensive and inconvenient.

“People are going to be late for their flights and miss their flights,” he said. “Even then it’s not gonna work because if someone is willing to give up their life, you’re not gonna stop them by putting a mirror under their car,” he said.

The idea has repeatedly come up in security discussions, but Kelly says it is unlikely to ever become reality.

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