Certainly taking on the Regular Army in a public challenge is an ambitious effort.

Such a public challenge to authority would be alarming on even a bad team.

He then made a public challenge to Emelianenko and the bout was supposed to take place in late 2003.

Gary Hart made his conduct virtually a public challenge and entertainment.

So far, executives at media companies have not voiced public challenges to the government campaign.

Utility company officials also declined several public challenges to drink a similar potion themselves.

A private disposal as opposed to the public challenge of the others.

We should engage the scientific community in this effort through a public challenge.

Instead, it usually means that the person issued a public challenge to another person (or many persons).

The purpose of the article was to herald the courthouse's 75th anniversary and to present a public challenge.