Climate change constitutes a serious threat to global security.

Steve was among the greatest of American innovators - brave enough to think differently, bold enough to believe he could change the world, and talented enough to do it...The world has lost a visionary. And there may be no greater tribute to Steve's success than the fact that much of the world learned of his passing on a device he invented.

I think it is important first of all that the president of the United States underscores our commitment to partnering with countries around the world, even though we're not intimidated by terrorist organisations.

Obviously, if Congress wants to talk about anything, we're happy to provide information. We're committed to moving forward under the current act.

I can say across Europe that many principles that have been taken for granted here around free speech, and around civil liberties and an independent judiciary, and fighting corruption, those are principles that, you know, not perfectly but generally, we have tried to apply not just in our own country but also with respect to our foreign policy.

When you're a candidate and you say something that is inaccurate or controversial, it has less impact than it does when you're president of the United States. Everybody around the world's paying attention. Markets move. National security issues require a level of precision in order to make sure that you don't make mistakes.

Iran won't pursue nuclear weapons because 'it's contrary to their faith.'