1.   Wider reality would threaten their existence.

2.   The report gives examples of species whose existence is being threatened by structural funds.

3.   But their tranquil existence is threatened.

4.   Although no other politician has been as open as Walden in warning the Europeans that their comfortable existence is threatened, alarm signals have, nonetheless, started ringing.

5.   And so his strictures on the accessibility and financing of the collection have hamstrung the dissemination of his unique vision to the point of threatening its existence.

6.   A federal judge issued an injunction against Napster, threatening its existence.

7.   But along the way, Gore pondered the specter of an environmental apocalypse that threatens human existence.

8.   He was an insightful leader of the Allied forces against conscienceless villains who threatened the existence of all that was worthwhile and sacred in western civilization.

9.   I just played golf in the heart of that communist land that once seemed to threaten our existence.