clear and present danger

1. The standard set by the Supreme Court for judging when freedom of speech may lawfully be limited. Justice Oliver Wendell Holmes, Jr., illustrated the point by arguing that no one has a constitutional right to shout “Fire!” in a crowded theater when no fire is present, for such action would pose a “clear and present danger” to public safety. (See First Amendment (see also First Amendment).)

Example Sentences

On Wednesday, nine First Nations from Ontario launched a constitutional challenge arguing both Ontario's legislation, and Carney's federal law, present a "clear and present danger" to their way of life and rights to self-determination.

From BBC

Unchecked technological advancement is no longer a distant threat to China but a clear and present danger, dispassionately gobbling up communities, jobs and Qiaoqiao’s and Bin’s dreams.

From Los Angeles Times

“This is a clear and present danger to Israel’s very survival.”

From Los Angeles Times

Barabak: I agree with all you say about a clear and present danger.

From Los Angeles Times

The site is facing two lawsuits in the US - one over the death of a teenager - and has been branded a "clear and present danger" to young people.

From BBC