Today in America, we are trying to prepare students for a high tech world of constant change, but we are doing so by putting them through a school system designed in the early 20th Century that has not seen substantial change in 30 years.

But my view is that you need a system at the border. You need some fencing but you need technology. You need boots on the ground. And then you need to have interior enforcement of our nation's immigration laws inside the country. And that means dealing with the employers who still consistently hire illegal labor.

Smart businesses do not look at labor costs alone anymore. They do look at market access, transportation, telecommunications infrastructure and the education and skill level of the workforce, the development of capital and the regulatory market.

We are on the lookout for criminal and terrorist activity but we do not nor will we ever monitor ideology or political beliefs. We take seriously our responsibility to protect civil rights and liberties of the American people, including subjecting our activities to rigorous oversight from numerous internal and external sources.

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

It drove home, personally, the value of early detection and education and intervention.

Each and every one of the security measures we implement serves an important goal: providing safe and efficient air travel for the millions of people who rely on our aviation system every day.