All images generated by imaging technology are viewed in a walled-off location not visible to the public. The officer assisting the passenger never sees the image, and the officer viewing the image never interacts with the passenger. The imaging technology that we use cannot store, export, print or transmit images.

I believe we have to move, eventually in our country, toward a system of public financing that really works for candidates running for federal office. I will support that as president.

Nonetheless, to the extent that terrorists have come into our country or suspected or known terrorists have entered our country across a border, it's been across the Canadian border. There are real issues there.

I've appointed a task force to take a fresh look at the color-code system and whether we should retain it, change it or scrap it.

What we're going to do with cyber-attacks - and we have already actually started - we started well before the executive order actually was issued - is working with the private sector, determine how best to share information, because, you know, we can't help until we know that there has actually been an attempted intrusion or attack. Information-sharing piece is very important.

As part of our layered approach, we have expedited the deployment of new Advanced Imaging Technology (AIT) units to help detect concealed metallic and non-metallic threats on passengers. These machines are now in use at airports nationwide, and the vast majority of travelers say they prefer this technology to alternative screening measures.

One of the most striking elements of today's threat picture is that plots to attack America increasingly involve American residents and citizens.