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.

Well, you know, I think in conversations with members of the Senate and others, they all recognize that the issue of immigration is important. It's important to our nation, it's important to our public safety, it's important to our security, it's important to our economic well-being moving forward. And it's not something that's going to go away.

The last thing the Department of Homeland Security is about is infringing on anybody's constitutionally protected rights.

You show me a 50-foot wall and I'll show you a 51-foot ladder.

You can't imagine a world, quite frankly, without a safe and secure aviation system. And so our job is to really focus on that, and what we need to do to keep it safe and secure.

Public schools were designed as the great equalizers of our society - the place where all children could have access to educational opportunities to make something of themselves in adulthood.

Such a system would be very, very expensive and laborious to have, given the kinds of border we have. Scientists and engineers aren't even sure they have the technology to make it work