The risk-hazard distinction is huge and it has lots of implications.

If you have a health and safety disaster, a television crew can be the first ones on site, and that information can go around the world in seconds.

Use of this information to select and treat the patients at highest risk for progression earlier may help prevent irreversible liver damage and improve patient compliance with therapy. These results may also enable more cost-effective and timely demonstration of efficacy for new drug therapies by enriching trials with those individuals more likely to suffer from disease progression.

For newly infected people, their issue is not considering themselves at risk. If they're not a man who has sex with men, they do not consider themselves at risk.

Although a crisp texture is the single most prized quality in an apple - even more desirable than taste, according to one study - crispness is more a matter of acoustics than of mouth feel.

PepsiCo is the largest food-and-beverage company in the United States, and the second-largest in the world after Nestle. If PepsiCo were a country, the size of its economy - sixty billion dollars in revenues in 2010 - would put it sixty-sixth in gross national product, between Ecuador and Croatia.