Why have these conditions become more critical in recent years?

And the support of major newspapers was critical in the process.

The group has been critical of nuclear power in space.

The press were very critical of me in many ways before that.

That last word had been critical in my thinking when coming up with the plan.

The time is the most critical in history to think and act with authority.

Many outside the community were also critical, especially in the press.

I want to thank two people who have been critical in my team.

Yet sometimes these can be signs of something else - or critical in their own right.

Some were particularly critical of his comments in recent weeks on the economy.