In order for us to solve many big problems around the world, it is in our interest to work with Russia and obtain their cooperation.

So Americans understand the costs of war. Yet as a country, we will never tolerate our security being threatened, nor stand idly by when our people have been killed. We will be relentless in defense of our citizens and our friends and allies. We will be true to the values that make us who we are.

I'm measuring my actions against that inner voice that for me at least is audible, is active, it tells me where I think I'm on track and where I think I'm off track.

Strong countries and strong presidents talk to their adversaries. That's what Kennedy did with Khrushchev. That's what Reagan did with Gorbachev. That's what Nixon did with Mao. I mean think about it. Iran, Cuba, Venezuela - these countries are tiny compared to the Soviet Union. They don't pose a serious threat to us the way the Soviet Union posed a threat to us. And yet we were willing to talk to the Soviet Union at the time when they were saying we're going to wipe you off the planet.

I believe in keeping guns out of our inner cities, and that our leaders must say so in the face of the gun manfuacturer's lobby. But I also believe that when a gangbanger shoots indiscriminately into a crowd because he feels someone disrespected him, we have a problem of morality. Not only do we need to punish that man for his crime, but we need to acknowledge that there's a hole in his heart, one that government programs alone may not be able to repair.

Here in Europe, I think that there are a lot of young people who forget the issues that were at stake during the Cold War.

What I want all of you to know is that we are going to bring those who killed our fellow Americans to justice.