Poorly secured nuclear material in the former Soviet Union, or secrets from a scientist in Pakistan could help build a bomb that detonates in Paris. The poppies in Afghanistan become the heroin in Berlin. The poverty and violence in Somalia breeds the terror of tomorrow.

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.

Here's what I can tell the American people: 95 percent of you will get a tax cut. And if you make less than $250,000, less than a quarter-million dollars a year, then you will not see one dime's worth of tax increase.

We're going to reverse a trend that is killing most families in this country, and that is they're having to go in their pocket for more and more money for health care every year.

One of the things I think I can bring to the presidency is to make government and public service cool again.

We are not going to keep the window open forever.

When people are oppressed, and human rights are denied - particularly along sectarian lines or ethnic lines - when dissent is silenced, it feeds violent extremism, it creates an environment that is ripe for terrorists to exploit. When peaceful, democratic change is impossible, it feeds into the terrorist propaganda that violence is the only answer available.