"There's been a tremendous increase in fatal pharmacy errors over the past 20 years, " said David Phillips, a sociology professor at the University of California-San Diego who has studied this issue.

CNN: Don't be a victim of pharmacy errors

Mortensen said there had been fatal accidents at the depot in years past, but none resulting in mass casualties.

NPR: Mortar Explosion In Nev. Kills 7 NC Unit Marines

She said the force had dealt with a number of "terrible" knife crimes in the past few months including the fatal stabbing of Christina on a bus in in March but she said these incidents should be "viewed in context".

BBC: Knife crime down by 25% in West Midlands

In the past, this shortcoming of traditional territorial defenses proved fatal to U.S. efforts to deploy them.

CENTERFORSECURITYPOLICY: Center for Security Policy | Showdown On SDI: Senate To Debate The Ultimate ��Killer Amendment��

Third and most important, the referendum has dealt a possibly fatal blow to Mr Berlusconi's underlying political strategy of the past seven years.

ECONOMIST: Italy's referendum

As many property developers have discovered in the past, relying on borrowed money to enhance returns can be fatal when lenders lose confidence.

ECONOMIST: Beating the market with beta

With no fatal crashes of scheduled U.S. airliners in four of the past five years, and other, longer-term measures also showing steady declines, safety experts now focus on new approaches to anticipate and counter incipient hazards.

WSJ: The New Frontier in Air Safety

Muriwai will remained closed for swimming until Saturday after the fatal attack, one of only about a dozen in New Zealand in the past 180 years.

NPR: Loved Ones Salute New Zealand Dad Killed By Shark

But there is every chance the effect of the past two days could spill over into other areas of the market, and possibly prove fatal to a big European bank involved in Volkswagen share trades.

FORBES: Market Scan