I think we need missile defense. But I want to make sure it works, that it's cost effective, that the technologies are operable, that it's our best possible strategy, and that hasn't been shown.

We think about the enormous costs of homelessness, or the enormous cost of HIV/AIDS, over the long term, as people visit emergency rooms, etc. The more we are investing in that ounce of prevention the better off we're going to be.

I will work every single day to make sure that America continues to be the greatest nation on earth.

There is no individual salvation without collective salvation

More broadly, Prime Minister Lee [Hsien Loong] and I will work to advance the US-Singapore partnership across the board. We're committed to sustaining the dynamism of our economies with the Trans-Pacific Partnership - the highest-standard trade agreement ever - which will support trade and innovation in both our countries.

Anybody who gets into bed and turns out the lights the first night in the White House probably feels a little bit of a start, where you say, "Goodness ... "

We have to uphold a free press and freedom of speech - because, in the end, lies and misinformation are no match for the truth.