But now all the existential threats to the different states are gone.

"Why are we supposed to be an existential threat to you, and not you to us?"

The fall of communism formed an existential threat for many institutions.

He also said that it "would represent an existential threat to the state of Israel."

Does the internet pose an existential threat to 24-hour broadcasting?

If that happened, the eurozone really would be under existential threat.

Overpopulation remains an existential threat to human welfare, and has been so since the late 1950s.

As existential threats go, terrorism is a pretty pathetic one.

Iran believes a democratic Iraq would pose an "existential threat" to it, he says.

Again, the service posed an existential threat to the "development of the legitimate online music market."