The bottom line is, if somebody doesn't go through proper security screening, they're not going to go on the flight.

But what I want to assure and reassure the public is we are concerned about your safety, your security, and your privacy. Let's work together in partnership to ensure that we can have the best way forward.

And so we try to address those concerns in every way possible, recognizing, again, in the final analysis, everybody on that flight wants to be assured with the highest level of confidence that everybody else on that flight has been properly screened, and including me and you and everybody.

I did not want to provide a blueprint or roadmap for the terrorists, saying 'Here are our new security procedures'.

The bottom line is how do we best provide for the security of the traveling public in light of a determined enemy who is adept at constructing well-designed, well-concealed devices which would not show up in a walk-through metal detector? We're trying to employ the best technology to identify any possible threat.

I particularly recognize that reasonable people can disagree as to what that proper balance or blend is between privacy and security and safety.

The bottom line is, if somebody doesn't go through proper security screening, they're not going to go on the flight.