Calhoun said that for a long time he had believed that the dispute over slavery -- if not settled -- would end in disunion.

VOA: special.2009.03.26

He says even if people have a healthy body weight, sitting for long periods of time still has an unhealthy influence on blood sugar and blood fats.

VOA: special.2010.01.13

The results suggested that people do act differently if they think they are working with a group for a short period of time instead of a long period.

VOA: special.2009.03.03

So if you can somehow upload a message into DNA, it could last a very,very long time,indeed."

VOA: standard.2010.04.16