What we have to do is go on the offensive. [The science on climate change] has been maligned and misinterpreted, and we need to fight back... [P]eople [need to] stop being moved by these talk show [hosts] and start looking for the facts themselves.

We do not need to divide America over who served and how. I have personally always believed that many served in many different ways.

I met with many of - a number of [Syrian] refugees in Berlin the other day, and I was struck by how educated, intelligent, and patriotic they are. They want to go back. They love their country. And there are so many of them still in Jordan and in refugee camps in Lebanon and in Turkey, that if you could create the climate within which they could begin to come back, I believe there is such a history of secularism within Syria, even tolerance within Syria, that if we can deal with ISIL, yes. That's the key. And with ISIL there, not a chance.

Without question, we need to disarm Saddam Hussein. He is a brutal, murderous dictator, leading an oppressive regime ... He presents a particularly grievous threat because he is so consistently prone to miscalculation ... And now he is miscalculating America's response to his continued deceit and his consistent grasp for weapons of mass destruction ... So the threat of Saddam Hussein with weapons of mass destruction is real.

We should not allow a tiny minority of shoddy scientists and science and extreme ideologues to compete with scientific facts.

I came into public life during the 1960s when a whole bunch of us believed in our ability to change the world. And we did a lot of things.

[Bashar] Assad himself has said on several occasions recently that if the people of Syria don't believe I should be there in the future, then I would step - I would leave. He has said it. He has, on occasion, hinted that he wants a political settlement of one kind or another. I think it's up to his supporters, his strongest supporters, to make it clear to him that if you're going to save Syria, Assad has made a set of choices - barrel bombing children, gassing his people, torturing his people, engaging in starvation as a tactic of war.