"Firearms are dangerous, and extraordinary dangers sometimes justify unusual precautions," Justice Ruth Bader Ginsburg said in her opinion for the court.

No unusual precautions were taken, she said.

He refused to explain this unusual precaution.

"That hantavirus is an extremely rare disease that occurs only sporadically, and that no unusual precautions need be followed."

On the tenth night, no unusual precautions were put into force.

This transfer under guard from the Captain's quarters was effected without unusual precautions- at least no visible ones.

Yes, clearing the roadside is an unusual precaution.

He was not wholly surprised; in fact, he had gone to the unusual precaution of carrying his gun in his pocket.

As foreigners left, the Taliban took unusual precautions: they began searching every vehicle entering government compounds.

But yesterday, bioterrorism experts said that no unusual precautions are recommended for suspected anthrax contamination.