The Transportation Security Administration is working on security screening changes and they could eventually come to McCarran International Airport.
The security overhaul's model is at Denver International Airport. The TSA hasn't specified details yet but it aims to make the process more efficient.
"It's hard to become a model for nationwide security because every airport's infrastructure is completely different," said aviation expert Steve Cowell.
Especially after the Brussels attacks, Cowell says passenger can expect to see a larger security presence, but the biggest changes need to happen behind the scenes in the screening process.
The changes at Denver International will be paid by a public-private partnership, which could be completed by 2019.
McCarran Airport officials said they have been operating a high level of security even before the Brussels attack and will continue to do so. They added they can't talk about any changes they are making yet because that would be giving the opposing team their game plan.