Police have received an anonymous threat declaring that a bomb has been planted at the airport.
Making threatening gestures to someone can be considered a form of assault.
The Martians threatened to destroy all humankind if humans didn't stop polluting the planet Earth.
He
was arrested for making threats against his neighbor.
His wife threatened to leave him if he didn't stop drinking.
The boss threatened him with dismissal for continually arriving late for work.
The kidnapper threatened to kill the boy if his demands were not
met.
Global warming is threatening polar bears by causing temperatures to rise in their frozen habitat.
The main environmental threat to human health in many towns and cities nowadays is from exposure to air pollution.
The unusually cold weather is a serious threat to the
tourist industry this summer.
A recent study shows that traffic pollution in cities is becoming as big a threat to health as exposure to cigarette smoke.
The threat of force is usually sufficient to secure the lawful conduct of most citizens.
Marital stability is threatened when a husband and wife have different expectations about their respective roles.
Rick Shuman once observed that the biggest threat to our well-being is the absence of moral clarity and purpose.
Martin Luther King once observed that injustice anywhere is a threat to justice everywhere.
Marsha Sinetar once remarked that change can either challenge or threaten us. Your beliefs either pave your way to success or block you.
There is a Basque proverb which notes that more people are threatened than are beaten up.
There is a Turkish proverb which notes that one bad experience is worth more than a thousand threats.
Abraham Joshua Heschel once remarked that racism is man's gravest threat to man - the maximum of hatred for a minimum of reason.
Deterioration of the environment is a long-term threat to continued rapid economic growth in China.
Mount Vesuvius in southern Italy has been labelled the world's most dangerous volcano, and is a constant threat to the hundreds of thousands of people who live in its shadow.
The quality of our ground water can be seriously threatened by the burial of waste material.