If you're flying out of Logan Airport, you'll likely end up having a "casual conversation" with security agents.

Logan launched a new screening program this week, in which TSA officials ask questions of every passenger at the security checkpoint in order to observe their behavior.

The program is based on risk, according to George Naccara, Logan's federal security director.

"Those with a low level of risk would probably have a very accelerated process through the screening check point (under the new program)," Naccara told Morning Edition's Bob Oakes. "Those who we determine have a higher level of risk would be introduced into other elements of security that we have in place today."

Logan is the first airport in the nation to test the approach.

"We feel that the human interaction is important," Naccara said. "Technology is not full-proof, it doesn't provide the complete level of assurance we'd like and I think, actually, a combination of human interaction and technology is necessary, in addition to all the layers of security we have behind it, of course."