That the Micronians presented an unprecedented danger was not to be argued; but to destroy Zor's dimensional fortress in lieu of capturing it was madness.

This new terrorism poses unprecedented dangers, especially because of Iran's drive to develop nonconventional weapons.

And Romania will add to the strength of the NATO alliance as we face unprecedented new dangers.

Or does the specter of the past keep Americans from recognizing and responding to an unprecedented danger challenging the country?

"Our nation is at war, our economy is in recession, and the civilized world faces unprecedented dangers," he said.

Between the glimpses of the apocalypse when she spoke to the UN General Assembly in November 1989 on the unprecedented dangers of its own making which faced mankind was an appeal:

On the contrary, it was an almost unique pledge, given only to meet an almost unprecedented temporary danger.

Egypt's military ruler says his country is facing unprecedented "grave dangers" and warns the military will not surrender to attempts to hurt the nation.

The technology race, driven by evolutionary pressures, is carrying us toward unprecedented dangers; we need to find strategies for dealing with them.

Politicians have a responsibility to protect the public against this unprecedented and existentialist danger.