At the core of it all is a deep uncertainty.

But there are also deep uncertainties in the field itself.

Despite industry executives' enthusiasm for interactive technology, deep uncertainties remain.

The reason for the high anxiety, analysts say, is deep uncertainty about the future.

They saw the look of deep uncertainty on his face.

The stakes are high, with voters around the state expressing deep uncertainty about their preferences.

I spent the whole time awake, feeling my body smooth over the deep uncertainty of always falling.

The 1989-90 school year also began with deep uncertainty about the leadership of the city school system.

No longer will science and medicine proceed with deep uncertainty over how many genes relate to a particular process.

Such polarization happens when people feel a deep uncertainty, even panic, about the future.