Airport Security Checks Caused Holiday Delays

For now, the Homeland Security Secretary said those full-body scanners and invasive pat-downs will not be changing for the foreseeable future.

Janet Napolitano said she is always looking to improve the security systems in place, adding that the new technology and pat downs are safer for the traveling public.

"I mean we want nothing to get aboard a plane that is not safe. So when something does get aboard, if something does get through the system, then we immediately go backward and say, ok, what happened here and -- and repair that deficiency," Napolitano said.

She dismissed recent news reports about a major airport failing secret tests designed to break the system.

That report said some airports had a 70 percent failure rate with agents failing to catch contraband such as guns and knives in security.