If secrecy is a concern here, perhaps the Mayor and board could both agree to take the unprecedented step of doing their interviews in public.

The unprecedented step came after other working groups had also been subject to related allegations of large companies undermining the standard process.

Rather than work with lawmakers to address these problems, the president has taken the unprecedented step of circumventing Congress.

They took an unprecedented step by going against their leadership.

We are also taking unprecedented steps to make sure disadvantaged pupils actually get into these schools.

This was an unprecedented step in the Islamic world.

And to accomplish it, I resolved to take an unprecedented step.

It was an unprecedented step in the history of the country.

So he took the unprecedented step of telling students the film he was showing.

Among all countries, Switzerland has taken unprecedented steps to come to terms with its past and do justice.