BBC's source was uncertain.

ECONOMIST: Politics

It is uncertain when the Nordic lands first became a source of trendiness.

NEWYORKER: Aska

According to a source speaking to the Wall Street Journal, the future is uncertain for the product, and Microsoft may not move forward with it at all.

FORBES: The Future is Uncertain for Microsoft's Xbox TV

This is the source of our confidence - the knowledge that God calls on us to shape an uncertain destiny.

NPR: Obama Vows To Tackle Challenges

This is the source of our confidence -- the knowledge that God calls on us to shape an uncertain destiny.

CNN: Obama's inaugural speech