If a teenager enters any known danger zones, their phone will make a sound alert and vibrate to let them know they are in an unsafe area.

BBC: Will the next Zuckerberg be female?

This may be the best-known danger in derivatives dealing: everyone in the markets knows that if shares stop trading or the share prices become much more volatile than expected, an option's market value will differ from the model's valuation.

ECONOMIST: Blind faith

If he dithers again, the argument goes, he is in danger of becoming known as someone who doesn't have the drive and focus to undertake a presidential campaign--or, to look at it from another perspective, someone who has too much sense to get involved in such goings-on.

CNN: Should Bradley stoop to conquer?

The carcinogenic danger of CFLs has been known for some time.

FORBES: More Concerns About Cancer and Energy Saving Light Bulbs: Justified?

The devastating, if little-known, report said New York City is in danger of permanent flooding.

FORBES: Wall Street Gets Back to Business, But For How Long?

The producer and multi-instrumentalist Danger Mouse and Mark Linkous (also known as Sparklehorse) are two of the most inspired and imaginative artists making music today.

NPR: 'Dark Night Of The Soul' Finds The Light Of Day

They faced the most extreme danger, which took some and spared others for reasons only known to God.

CNN: Bush: WWII Memorial a 'fitting tribute'

Martin Winter's lawyers argued the victims had put themselves in danger but Mr Justice MacDuff said on Tuesday they could not have known the peril they were in.

BBC: Marlie Farm fireworks blast widows win right to damages

Pigs have been known to scope out traps for days before sending in the group's lowest ranking members to test for danger.

NPR: $1M Pilot Project Aims To Take Out Feral Pigs