Janet Napolitano: “The administration is determined to find and to fix the vulnerabilities in our systems that allowed this breach to…”

We aspire to be the gold standard, but we know we have more work to do.

Climate change was one of the ``greatest challenges of our time.''

When you build a 12-foot wall, they will find a 14-foot ladder, or they will tunnel under it, or they will find other ways to get around, if we don't have a comprehensive system of identifying who is valid to be in this country and who…

The importance of this hearing and the importance of the support shown in the Senate for this legislation cannot be overstated.