The last great threat we face is the threat to our security from international terrorism.
Any modifications to our security system must enhance our ability to detect such threats.
Unchecked, climate change will pose unacceptable risks to our security, our economies, and our planet.
We confront threats to our security that seek to exploit the very openness that is essential to our prosperity.
Further, we harm our partners, whose continued cooperation remains essential to our security.
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Some, like myself, believe that the war in Iraq is all part of the same global threat to our security which we face.
Now, rebuilding this economy is essential, but, as Mary said, our prosperity at home is also linked to our security and our policies abroad.
We cannot look back years from now and wonder why we did nothing in the face of real threats to our security and our economy.
And it maintains the flexibility that we need to protect and advance our national security, and to guarantee our unwavering commitment to the security of our allies.
"We cannot look back years from now and wonder why we did nothing in the face of real threats to our security and our economy, " he said.
But we must not underestimate how proliferation to a state could destabilize regions critical to our security and prompt neighbors to seek nuclear weapons of their own.
We commend President Bush and the bipartisan majorities in the House and Senate that have previously recognized the vital importance of the Patriot Act to our security.
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But I think the enhancements that we have made to our security over the past decade has made it much more difficult for terrorists to conduct these large-scale attacks.
We will confront the hard issues -- threats to our national security, threats to our health and retirement security -- before the challenges of our time become crises for our children.
We face threats to our security that seek -- there are threats to our security that are based on those who would seek to exploit the very interconnectedness and openness that's so essential to our prosperity.
He and the Carnegie Endowment have long promoted the idea that arms control, international treaties and regimes, supranational government bodies, multilateral inspections and, in extremis, UN-approved sanctions can be safely relied upon to resolve basically all threats to our security.
Even as we stay focused on this mission, we need you to stay nimble and flexible to meet the full range of threats to our security, from plots against our homeland to nations seeking weapons of mass destruction to transnational threats such as cyber criminals and narcotraffickers.
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That's something that is crucially important to our national security and to our foreign relations.
Broadly, I could give you our view of U.S.-Pakistani relations and the fact that that relationship has been and continues to be complicated but is very important to our national security interest, to our fight against al Qaeda, and to the stability of the region.
With regard to our shared security, we affirmed our commitment to our alliance, which marks its 50th anniversary this year.
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We're convinced, for our own self-interest, that the way we use energy, changing it to a more efficient fashion, is essential to our national security, because it helps to reduce our dependence on foreign oil, and helps us deal with some of the dangers posed by climate change.
We also discussed the fact that Russia has cooperated with us on critical issues to our national security like Iran sanctions, transit to supply our troops in Afghanistan, working on securing loose nuclear materials.
In short, it is increasingly clear that the danger of nuclear terrorism is one of the greatest threats to global security -- to our collective security.
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We reviewed our ongoing efforts to modernize our security alliance.
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For example, in the three or four cases that the Bush administration has asserted the privilege - in the NSA eavesdropping program context, I can imagine, having served at the National Security Council and the CIA, any number of scenarios under which it would be tremendously damaging to our national security for al-Qaida to understand any of the facts about this program.
The key to meeting these challenges -- to improving our health and well-being, to harnessing clean energy, to protecting our security, and succeeding in the global economy -- will be reaffirming and strengthening America's role as the world's engine of scientific discovery and technological innovation.
In keeping with the strategic concept we agreed to in Lisbon and in order to fulfill our Article Five commitment to our collective security, we agreed to acquire a fleet of remotely piloted aircraft, drones, to strengthen intelligence, surveillance and reconnaissance.
In a letter posted on the White House website, John Brennan, assistant to the president for homeland security and counterterrorism, said that protecting the internet was "critical to our national security, public safety and our personal privacy and civil liberties".
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