As a nuclear power - as the only nuclear power to have used a nuclear weapon - the United States has a moral responsibility to act.

For we have always understood that when times change, so must we, that fidelity to our founding principles requires new responses to new challenges, that preserving our individual freedoms ultimately requires collective action.

I don't regret the fervor, because I do believe, in the African American community but also for other communities, and I know from talking to people, for communities around the world, the election of an African American to the most powerful office on Earth meant things had changed, and not just in superficial ways. That in some irreversible way the world was different.

As we look forward to the New Year, let's resolve to recommit ourselves to the values we share.

It is absolutely important that we have a unified alliance and that we explain to the Russians that you cannot be a 21st-century superpower, or power, and act like a 20th-century dictatorship.

People are discouraged from voting and part of what is important for Latino citizens is to make your voice heard, because you're not just speaking for yourself. You're speaking for family members, friends, classmates of yours in school.

We have to have better intelligence. We have to have better interdiction capabilities. And so the issue is not how much we spend or how hard we try; the issue is are we doing it the right way? Are we being smart about it?