Were they to do so, it would be a catastrophe for the world -- causing extraordinary loss of life, and striking a major blow to global peace and stability.

WHITEHOUSE: President Obama at Opening Plenary of Nuclear Security Summit | The White House

And I think, as you know, over the past year, this administration, working with the -- the military has taken extraordinary steps to reduce the loss of innocent life in our operations undertaken by both ISAF forces and Afghan forces in coordination.

WHITEHOUSE: Press Briefing

Anyone who wishes to understand the actual, extraordinary caliber of this man - and the loss to the country represented by his departure from public service - is invited to peruse his record of profoundly thoughtful, well-reasoned and brilliantly articulated writings.

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Extraordinary security incurs extraordinary financial costs and, more importantly, the loss of personal liberty.

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We deeply feel her loss, but we also celebrate the extraordinary legacy she has left Britain, Europe and the World.

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And part of what I think has helped to avert even worse tragedies and greater loss of life is because of the extraordinary responsiveness and farsighted thinking of state, local and federal personnel.

WHITEHOUSE: President Obama Tours Hurricane Damage in Paterson

The fact that it was done without loss of any U.S. personnel makes the performance all the more extraordinary.

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